Whitney Donovan goes by Whitz.
Donovan Patton goes by Dono.
Whitney Hicks goes by Whitney Star.
Yup 
No, Tate Donovan and Jeffery Donovan are not related.
Elisa Donovan's birth name is Lisa Donovan.
Whitney Donovan's birth name is Whitney Heather Donovan.
Cherise Donovan goes by Chaz.
Francisco Donovan goes by Frankie.
Jeffrey Donovan goes by Jeff.
Rebeca Donovan goes by Beca.
Donovan Patton goes by Dono.
Whitney Donovan is 5' 0".
Whitney Hicks goes by Whitney Star.
Donovan Dustin goes by Mr. D..
Barry Donovan goes by Barry D..
Conor Donovan goes by Hot stud.
Dave Donovan goes by The Cowboy from Hell.