Irwin Allen | Steve Irwin | Robert Irwin (artist) | Robert Irwin | Bill Irwin | May Irwin | Irwin Shaw | Irwin M. Jacobs | Lew Irwin | Irwin L. Jacobs | Bob Irwin | Irwin Cotler | Frederick Irwin | Irwin Levine | Clint Irwin | Stafford LeRoy Irwin | Richard Beebe in the original line-up of '''Lew Irwin and The Credibility Gap''' (left to right): John Gilliland | Lizzy Caplan | Joseph Oscar Irwin | John N. Irwin, II | Jil Caplan | Irwin Winkler | Irwin Jacobs | Irwin Hoffman | IRWIN | Irwin | Herbert Carmichael Irwin | Arthur Caplan | Agnes Irwin School | Will Irwin, photo published in ''San Francisco Call |
Cartoonists included Bob Barnes, Irwin Caplan, Chon Day, Leo Garel, Jerry Marcus, Don Orehek, Virgil Partch, Bob Schroeter, Eli Stein, George Wolfe and Pete Wyma.
In But That's Unprintable (1955) Breger wrote about newspaper and magazine taboos and illustrated his text with 135 unpublished cartoons by leading cartoonists, including Bo Brown, Milton Caniff, Irwin Caplan, Eric Ericson, Stan Fine, Rube Goldberg, Leo Garel, Don Flowers, Phil Interlandi, Reamer Keller, Fred Lundy, Jack Markow, Charles E. Martin, Fred Neher, Russell Patterson, Mort Walker and George Wolfe.