Born November 24, 2015
Named for Abigail's great grandfather and father
After his birth, Chad said he did not want Thomas burdened with the last name "DiMera"
None
Splits time between the DiMera mansion and Abigail's appartment
Formerly the DiMera Mansion
Single
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Chad DiMera (father)
Abigail Deveraux (mother)
Grace Brady (paternal half-sister; deceased)
Stefano DiMera (grandfather)
Madeline Petersen-Woods (grandmother; deceased)
Jack Deveraux Sr. (grandfather; deceased)
Jennifer Horton (grandmother)
Jack Deveraux Jr. (maternal uncle)
Andre DiMera (paternal uncle)
Renee DuMonde (paternal aunt; deceased)
Megan Hathaway (paternal aunt; deceased)
Kristen DiMera (paternal aunt; via adoption; deceased)
Peter Blake (paternal uncle; via adoption)
Lexie Brooks Carver (paternal aunt; deceased)
Benjy Hawk (paternal uncle; deceased)
E.J. DiMera (paternal uncle; deceased)
Ryan (paternal uncle; deceased)
Harper Deveraux (paternal adoptive great-grandfather; deceased)
Santo DiMera (patenal great-grandfather; deceased)
Camille Deveraux (paternal adoptive great-great-grandmother; deceased)
Duke Earl Johnson (paternal biological great-grandfather; deceased)
Jo Johnson (paternal biological great-grandmother)
Bill Horton (maternal great-grandfather)
Laura Spencer (maternal great-grandmother)
Tom Horton Sr. (maternal great-great-grandfather; deceased)
Alice Grayson (maternal great-great-grandmother; deceased)
James Spencer (maternal great-great-grandfather; deceased)
Carrie Spencer (maternal great-great-grandmother; deceased)
Sid Grayson (maternal great-great-great-grandfather; deceased)
Abigail Grayson (maternal great-great-great-grandmother; deceased)
Steve Johnson (maternal biological great-uncle)
Adrienne Johnson (maternal biological great-aunt)
Mike Horton (maternal great-uncle)
Theo Carver (paternal cousin)
Johnny DiMera (paternal cousin)
Sydney DiMera (paternal cousin)
Stephanie Johnson (maternal biological cousin once removed)
Joey Johnson (maternal biological cousin once removed)
Tripp Dalton (maternal biological cousin once removed)
Joseph Kiriakis (maternal biological cousin once removed; via adoption)
Victor Kiriakis II (maternal biological cousin once removed; via adoption)
Sonny Kiriakis (maternal biological cousin once removed)
Jeremy Horton (maternal cousin once removed)
Lucas Horton (maternal great-uncle)
Will Horton (maternal half-cousin once removed; deceased)
Alice "Allie" Caroline Horton (maternal half-cousin once removed)
Arianna Grace Horton (maternal half-cousin; twice removed)
Earl Duke Johnson (paternal biological great-great-uncle; deceased)
Tommy Horton Jr. (maternal great-great-uncle)
Addie Horton (maternal great-great-aunt; deceased)
Mickey Horton (maternal great-great-uncle; deceased)
Marie Horton (maternal great-great-aunt)
Sandy Horton (maternal first cousin twice removed)
Julie Olson (maternal first cousin twice removed)
Steven Olson (maternal first cousin twice removed)
Hope Williams (maternal first cousin twice removed)
David Banning (maternal second cousin once removed)
Spencer Olson (maternal second cousin once removed)
Shawn-Douglas Brady (maternal second cousin once removed)
Zack Brady (maternal second cousin once removed; deceased)
Ciara Brady (maternal second cousin once removed)
Scott Banning (maternal second cousin twice removed)
Eli Grant (maternal second cousin twice removed)
Sarah Horton (maternal first cousin twice removed; via adoption)
Melissa Horton (maternal first cousin twice removed; via adoption)
Jessica Blake (maternal first cousin twice removed)
Nick Fallon (maternal second cousin once removed; deceased)
Nathan Horton (maternal second cousin once removed; via adoption)
Claire Brady (maternal second cousin twice removed)
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Born with aplastic anemia
Baby Thomas was born under duress, when Ben Weston (who believed he was Thomas's father) kidnapped Abigail and she went into labor early. After he was born, Ben kidnapped Thomas (whom he called Colin) and left Abigail to die.
J.J. tracked down "Colin" and brought him home to Abigail. Tests proved he was Chad's son. Abigail renamed him Thomas Jack Deveraux.
