This is Part 2 of our series on Bertha Klausner, Missed Part 1?ย Read it here to learn how she built her literary agency from the ground up.
Building a Literary Empire
After closing her Hollywood office in 1960 and returning to work full-time from New York, Klausner entered the most prolific phase of her career. Through it all, she thrived, building lasting relationships and forging new paths for her clients in both literature and entertainment. Her work with literary giants like Upton Sinclair, whose books she sold for nearly two decades, and Marcel Marceau, whom she helped introduce to American audiences, solidified her position as a key figure in the literary world.1
Her Hollywood connections were also sound and enduring. In a February 2025 interview, Klausnerโs nephew, Dennis Torres, talked about a meeting he had with Stanley Kramer that was initiated by his aunt. Hoping to pitch his then recent novel to the producer/director as a film idea, Torres instead sat for an hour listening to Kramer extoll his auntโs virtues.2 She was well-liked and respected in all circles. Her commitment to her clients was single-minded as she wove together an international network of publishers, and radio, film, television, and stage directors and producers.

For decades she would entertain and conduct business out of her home. A great-granddaughter, Rebecca Spence, recalls that her earliest memory when visiting her Nana at her Park Avenue apartment in New York was meeting Marcel Marceau:
When I was little Marcel Marceau would be in her apartment and he would do… private mime performances for me and my brother… we were little children, very youngโthree or four. That is my earliest memoryโMarcel Marceau being in my Nanaโs apartment and doing mime for me. Pretty amazing.3
She would oftentimes prepare meals for her clients and prospective business partners. Upton Sinclair mentioned one such event in his 1962 autobiography wherein he stated, โOne of the most unusual occasions was a luncheon given by my faithful agent, Bertha Klausner, who invited only those people who are working, in one way or another, with my various booksโpublishing or reissuing or dramatizing them for stage or screen. And, there was a roomful of them!โ4
Klausnerโs family members would frequently be at the luncheons she hosted. Nephew Dennis Torres recounts having met notables such as Adam Clayton Powell and Claire Booth Luce at these events, both of whom were her clients. He also remembers his aunt sending him on errands. During these trips, he once met Ralph Bellamy, a renowned stage, film, and television star, and Tony Award-winning producer David Merrick.5 Torres remembers that Merrick โwould always get great seats for her [Klausner] whenever she wanted to go to any play. In my mind she was like Gertrude Stein was to the ex-pats in ParisโI considered Bertha the Gertrude Stein of New York.โ6
Great-granddaughter Rebecca Spence also recounts โgoing to her house and there is action, there are people there, important people, and artists and culture makers and weโre getting free tickets from Tommy Tune to go see…The Phantom of the Opera in the VIP section in the first row…I remember as a child, that [when] we visited…my Nana in New York she would give us free VIP tickets to…major plays and…Broadway shows.โ7
Her New York apartment became the center of both her personal and professional worlds, where there seemed to be no boundaries between her personal and professional life. Jean Cappel (who worked from Klausnerโs home), sent her a postcard in 1959 (special delivery, no less) addressing an inquiry that Klausner had made of her stating, โDear Bertha, Bottom doorโa box second from windows in your bedroom are bundles of scripts from article file. Ralph ______ should have a bundle & Cocos [sic] outline should be there (otherwise in book files under โHโ or โWโ).โ8 Klausnerโs granddaughter Maya worked for the agency for ten years while in high school and while attending college at Vassar. She related working from her grandmotherโs apartment on Lexington Avenue from 1967 to 1975:
The one on Lexington Avenue was hilarious because it was probably at some point a residential hotel. There was no kitchen. It was a two-bedroom and one bath. She turned a closet into a kitchen. She used a hot plate and had a little refrigerator like a kid would use in a dorm room and produced amazing meals out of this closet. And, she entertained writers and editors and people in the business there. Usually lunch. And, the same when she moved to the big apartment [on Park Avenue].9
Those luncheons oftentimes bore fruit for Klausner. In 1972 she received correspondence from Lilly Poritz Miller, a senior trade editor with publishers McClelland & Stewart Ltd in Toronto. Miller had referred Canadian author and screenwriter, Seymour Blicker, to Klausner whose book, Schmucks, she represented in the United States and Israel. In Millerโs letters to Klausner dated June 27, 1972, she wrote, โMany times I have thought of those warm and festive luncheons with you and I miss seeing you.โ10 Klausner continued to work and entertain from her home into her eighties.
International Expansion
Klausner cast a wide net across borders and oceans. Her letterhead in 1954 indicated that her agency reached clients across the globe including Australia, India, Indonesia, Philippines, and South Africa.11 Her influence also extended into the Middle East, notably to Israel, where she established important connections with literary and film agencies.
In the early 1970s, Klausner reached out to Israeli businesses and explored opportunities for collaboration in film production. Her correspondence with Israeli agencies highlighted her interest in expanding the reach of American literature and film into international markets, particularly in Israel, where she sought to negotiate film rights and represent Israeli filmmakers in the U.S. and Canada.12
She began by sending a barrage of letters (over two dozen) to organizations such as Israfilm Ltd.13 And the bait worked! In a 1973 mailing, she secured a meeting with Israfilm and pitched several of her authors to them. In February 1974, Klausner traveled to Israel to meet with representatives from Israfilm and other agencies to discuss potential co-productions and the possibility of bringing Israeli literature and stories to a broader audience. Her efforts not only expanded her agency’s influence but also contributed to fostering cultural exchanges between the U.S. and Israel, making her a key figure in promoting Israeli content in the American market.14
She negotiated film and television rights for her clients, including Seymour Blicker and American author and longtime client Robert Payne. She carefully strategized and once she had established initial contact with an interested party, she would advocate on behalf of her clients with other reputable firms.

An example of this can be found in her cordial but assertive correspondence with a representative from an Israeli publisher. While she had not secure a definitive agreement with Israfilm to produce Robert Payneโs unpublished manuscript, Love Stories from the Bible, as a television series, she leveraged this initial contact to attract interest from the Bar David Literary Agency.15
The letter to Varda Mor of Bar David contains both a personal note and an admonishment that exemplifies Klausnerโs direct literary style: โI feel that your interest in Robert Payne should be stronger than it is.โ16

Writing letters was an art for Klausner. Most often, they were the first introduction of herself, her agency, and clients to a potential publisher or producer. She often established a personal connection with prospective colleagues while maintaining a professional manner and strongly advocating on behalf of her clients. Screen writer and author, Pete Chaney, referred to his relationship with Klausner as one wherein he โcould never refuse Bertha anything. My feelings for her range from admiration to deep affection, everything you can feel about a person youโve known for 20 years but never met except by phone and letter.โ17 In a 1980 article, Dick Boswell referred to her as a โmotherly dynamo.โ18
A Legacy of Relationships
The hallmark of Klausnerโs career was her unwavering commitment to her clients and her ability to inspire and support them beyond mere business transactions. Her Park Avenue apartment became a hub for literary creativity, where writers, editors, and producers regularly gathered for lunches that often led to significant publishing and commercial successes. Klausner’s reputation for integrity, warmth, and her relentless drive earned her Upton Sinclairโs nickname “The Big Bertha of Literary Agents” a testament to her formidable presence in the industry.19 As Klausner continued to expand her influence, she remained dedicated to nurturing the next generation of writers and expanding the reach of her agency. Even in her later years, she showed no signs of slowing down, constantly seeking new opportunities and challenges, including those that took her abroad.
A Lasting Impact
According to journalist Morna Murphy, Klausnerโs philosophy was โNever give up!โ20 The more than 700 boxes in her papers housed at the American Heritage Center are a testament to this principle. Klausnerโs work ethic and devotion to her clients is demonstrated time and again throughout. Her style was relentless and, as Murphy wrote about Klausner, at the age of 80 she remained โindependent and unsinkable, working seven days a week extending encouragement (and often home cooking) to a host of writers.โ21 Her legacy is one of innovation, resilience, and a profound impact on the literary and entertainment industries, making her a central figure in the history of American publishing and a pioneer in fostering international cultural exchanges.22
Post contributed by AHC Archives Aide Patty Kessler.
- Howell Hurst to Bertha Klausner, May 7, 1987 (biography):4-6, Box 1, Folder 1, Bertha Klausner papers, Coll. No. 9462, American Heritage Center, University of Wyoming. โฉ๏ธ
- Dennis Torres, interview by Patty Kessler, February 13, 2025, interview transcript, American Heritage Center. โฉ๏ธ
- Rebecca Spence, interview by Patty Kessler, February 26, 2025, interview transcript, American Heritage Center. โฉ๏ธ
- Upton Sinclair, The Autobiography of Upton Sinclair,1878-1968 (New York, Harcourt, Brace & World, 1962): 325. โฉ๏ธ
- Torres interview. โฉ๏ธ
- Ibid. โฉ๏ธ
- Spence interview. โฉ๏ธ
- Jean Cappel to Klausner, ca. 1959, Box 13, Folder 5, Klausner papers. โฉ๏ธ
- Maya Reiser, interview by Patty Kessler, January 23, 2025, interview transcript, American Heritage Center. โฉ๏ธ
- Lilly Poritz Miller to Klausner, June 27, 1972, Box 12, Folder 2, Klausner papers. โฉ๏ธ
- Klausner to Joe E. Brown, October 13, 1954, Box 14, Folder 16, Klausner papers. โฉ๏ธ
- Klausner to Israfilm, July 14, 1973, Box 50, folder 11, Klausner papers. โฉ๏ธ
- Ibid. โฉ๏ธ
- Klausner to Alex Masis, January 5, 1974, Box 50, Folder 11, Klausner papers. โฉ๏ธ
- Klausner to Varda Mor, December 30, 1979, Box 92, Folder 2, Klausner papers. โฉ๏ธ
- Ibid. โฉ๏ธ
- Pete Chaney, Voice in a Crowd, International Press Service, โA Giant in the Shadows,โ n.d., Klausner Bio File, American Heritage Center. โฉ๏ธ
- Dick Bothwell, โAgentโs Secret Literary Formula:ย Never Give Up,โ St. Petersburg Times, December 16, 1980, Box 1, Folder 1, Klausner papers. โฉ๏ธ
- Hurst, 1-2. โฉ๏ธ
- Morna Murphy, โSinclair Play in Klausner Projects,โ The Hollywood Reporter, April 2, 198; Biographical File, Klausner papers. โฉ๏ธ
- Ibid. โฉ๏ธ
- Hurst, 8-12. โฉ๏ธ




















































