Courtesy of Barry Williams
05/14/2012 AT 12:35 PM EDT
Meet the latest member of the bunch.
Barry Williams, who played eldest son Greg Brady on the hit '70s show, and girlfriend Elizabeth Kennedy have shared photos
of their newborn daughter
, Samantha Rose.
"Samantha Rose is Elizabeth and Barry's greatest earthly blessing and they've never been happier," a source tells RumorFix.com
Samantha joins big brother Brandon, 9, from Williams's prior relationship.