IIRC, the stuff about kids is in Gary Kleck's "Point Blank: Guns and Violence in America" although there was probably some stuff in Philip Cook's "Gun Control".
I stopped reading the research 10-15 years ago, long after it became clear that the research didn't have any effect on people's positions.
The other good source is "Armed and Considered Dangerous: A Survey of Felons and Their Firearms" by Wright and Rossi. They were tasked by the Carter administration with gathering the available research to prove that gun control worked.
