- 6th
- 12:48 pm Derekica Snake (born April 6, 1966)
- 12:51 pm Joseph Olshan (born April 6, 1958)
- 01:09 pm Cover Reveal: Crossed Hearts by K. Vale
- 7th
- 10:40 am Ally Blue (born April 7, 1964)
- 10:42 am T.T. Thomas (born April 7)
- 10:44 am Taylor V. Donovan (born April 7)
- 10:50 am David Haugland & Richard Schmiechen
- 10:51 am Ethel Collins Dunham & Martha May Eliot
- 10:54 am Harry Hay & John Burnside
- 11:04 am George Dureau (December 28, 1930 - April 7, 2014)
- 8th
- 10:02 am Evan Davis & Guillaume Baltz - 2 comments
- 10:05 am Eddie Aldridge & Fred Ebb
- 10:08 am Gene Pruitt & Michael Bennett
- 9th
- 11:00 am Lesley Gowan (born April 9)
- 11:29 am Marc Jacobs, Harry Louis & Lorenzo Martone - 4 comments
- 11:34 am Andrea Dworkin (September 26, 1946 – April 9, 2005)
- 11:45 am Blog Tour: Finding Their Way by Chris Owen & Tory Temple
- 10th
- 09:33 am sbr martin (born April 10)
- 10:05 am Cole Tucker & Tom Spencer
- 11:19 am Blog Tour: Un-Expected by Lisa Worrall
- 11th
- 10:14 am Alix Layman & Dorothy Allison
- 10:18 am Guy Glover & Norman McLaren
- 10:24 am 2015 Rainbow Awards Submission: Spidermilk by Konrad Hartmann
- 10:55 am Statistics: March 2015
- 12th
- 10:58 am Bradford Shellhammer & Georgi Balinov
- 11:03 am Charles Ludlam & Everett Quinton
- 11:18 am James K. Lyons (October 8, 1960 – April 12, 2007)
- 11:39 am James Schuyler (November 9, 1923 - April 12, 1991)
- 11:41 am William M. Hoffman (born April 12, 1939)
- 11:45 am Blog Tour: Slaying Isidore's Dragons by C. Kennedy
- 13th
- 06:56 pm Jordan Castillo Price (born April 13) - 1 comment
- 14th
- 06:00 am Blog Tour: Baked Fresh by Annabeth Albert
- 08:47 pm Freddy MacKay (born April 14) - 1 comment
- 08:49 pm Diane Adams (born April 14)
- 09:38 pm Mary Wings (born April 14, 1949)
- 09:43 pm Book Blast: When The Band Came to Town by H. Lewis-Foster
- 10:02 pm Dylan Rosser: Facebook block - 4 comments
- 15th
- 08:03 pm Sandrine Gasq-Dion (born April 15)
- 08:33 pm Craig Zadan & Neil Meron
- 08:36 pm Johnny Manzon-Santos, B. Michael Hunter & Mickey Branca
- 08:38 pm Freda Stark & Thelma Mareo
- 08:47 pm Drake Jensen & Michael Morin
- 08:54 pm Sally Miller Gearhart (born April 15, 1931)
- 09:06 pm Blog Tour: My Zombie Boyfriend by T. Strange - 1 comment
- 16th
- 09:08 pm Nell Stark & Trinity Tam
- 09:30 pm Muño Vandilaz & Pedro Díaz
- 09:50 pm Daniel Mendelsohn (born April 16, 1960)
- 09:51 pm Joan Snyder & Maggie Cammer
- 10:01 pm Paul & Sean Maher
- 10:07 pm Cover Reveal: Good Family Man by Thianna Durston
- 17th
- 10:21 am Catherine Ryan Hyde (born April 17, 1955)
- 10:23 am Mary Griggs (born April 17) - 2 comments
- 10:25 am Jake Jaxson (born April 17, 1971)
- 10:42 am Nick Burd (born April 17)
- 10:43 am Irena Klepfisz (born April 17, 1941)
- 10:46 am Book Blast: Just The Way You Are by E E Montgomery
- 18th
- 09:46 am Aram Hosie & Louise Pratt
- 09:57 am Bret Shuford & Stephen Hanna
- 10:10 am Andrew Frist & Tom Dolby
- 10:16 am Blog Tour: Freeing His Mercenary by Vanessa Sims
- 20th
- 09:27 pm Alex Hirst & Rotimi Fani-Kayode
- 09:35 pm Blanche Wiesen Cook & Clare Coss
- 09:43 pm Jo Hercus & Katherine V. Forrest
- 09:44 pm Sanford Friedman (June 11, 1928 - April 20, 2010)
- 09:55 pm Blog Tour: Redemption by Viki Lyn and Vina Grey
- 21st
- 08:27 pm Donna K. Ford (born April 21, 1970)
- 08:31 pm David Soar & Ronald Magill
- 08:35 pm Muriel Inez Crawford & Sarah Aldridge
- 08:38 pm Jessica Clark & Lacey Stone
- 08:45 pm Mike Schaefer & Ric Weiland
- 08:46 pm Pamela S. Karlan & Viola Canales
- 09:00 pm Prince Eugene of Savoy & Marquis de la Moussaye
- 09:14 pm Blog Tour: The Eye And The Arm by Andrew Q. Gordon
- 22nd
- 10:08 am Betsy Forster & Laura Gilpin
- 10:16 am Elizabeth Wharton Drexel & Henry Symes Lehr
- 10:20 am Shane Bitney Crone & Tom Bridegroom - 13 comments
- 10:24 am New UK event: Queer Company
- 23rd
- 09:57 am Ginn Hale (born April 23, 1968)
- 09:59 am K.A. Mitchell (born April 23)
- 10:03 am Alex & Jónsi
- 10:21 am Anne Seymour Damer & Mary Berry
- 10:23 am Charles Silverstein & William Bory
- 10:31 am Prince Edmond de Polignac, Robert de Montesquiou & Winnaretta Singer
- 10:33 am James Buchanan & William R. King
- 10:42 am Mabel Reed & Mary Ellicott Arnold
- 10:43 am Michael Kirby & Johan van Vloten
- 10:45 am Lady Catharine Jones & Mary Kendall
- 10:59 am Cover Reveal: Secret by Kindle Alexander
- 08:48 pm 2015 Rainbow Awards Submission: Making Time by C.J. Harte
- 24th
- 03:34 pm Francis Menuge & Jean Paul Gaultier
- 03:35 pm Alex Sanchez (born April 24, 1957)
- 03:37 pm Ruth Sims (born April 24)
- 03:38 pm Simon Gage (born April 24, 1963)
- 03:46 pm Blog Tour: In-Decision by Sue Brown
- 25th
- 12:44 pm Kimberly Gardner (born April 25, 1963)
- 12:46 pm Andy Bell & Paul Hickey - 2 comments
- 12:48 pm Robert Rauschenberg, Jasper Johns, Cy Twombly & Darryl Pottorf
- 01:25 pm Darryl Pinckney & James Fenton
- 01:31 pm Graham Payn & Noël Coward
- 01:44 pm 2015 Rainbow Awards Submission: Manipulation by Eden Winters
- 26th
- 10:55 am Rebecca Buck (born April 26, 1982)
- 11:00 am Adrienne Monnier & Sylvia Beach
- 11:04 am Lily Parr & Mary
- 11:14 am Jonathan Rauch (born April 26, 1960)
- 11:29 am Martin Wilson (born April 26, 1973)
- 11:30 am 2015 Rainbow Awards Submission: Square Affair by Timmothy J. Holt
- 29th
- 11:05 pm Leona Carver (born April 29, 1985)
- 11:19 pm Leslie Jordan (born April 29, 1955)
- 11:22 pm Joanna Russ (February 22, 1937 – April 29, 2011)
- 11:26 pm Blog Tour: Lock and Key by T. Strange
- 30th
- 12:15 am LIBRARY OF CONGRESS ANNOUNCEMENT FOR Sylvester & Orphanos
- 09:44 am Amber Heard, Tasya Van Ree & Johnny Depp
- 09:55 am Brad Gooch & Howard Brookner
- 10:05 am Helen Dinsmore Huntington & Vincent Astor - 1 comment
- 10:08 am Roy Strickland & William M. Wynkoop
- 10:09 am John Boyne (born April 30, 1971)
- 10:10 am Liz Lachman & Susan Feniger
- 10:23 am Craig Lucas & Tim Melester - 4 comments
- 10:24 am Book Blast: How It Was Supposed to Be by Jayson James