He had a younger brother Angelo who was a professor at the Philadelphia Academy of Sciences and two sisters.
San Angelo, Texas | San Angelo | Angelo Branduardi | Castel Sant'Angelo | Angelo Badalamenti | Santo Ângelo | Sant'Angelo | D'Angelo | Angelo Arrigoni | Angelo Torres | Angelo Debarre | Angelo Sodano | Angelo Scola | Angelo Mangiarotti | Yves Angelo | Jerry Angelo | Angelo Stano | Angelo Schiavio | Angelo Mosca | Angelo Medina | Angelo Grillo | Angelo Gilardino | Angelo Cifelli | Angelo Bagnasco | Sant'Angelo (Milan) | Sant'Angelo in Vado | Michael Angelo Batio | Matt Di Angelo | Beverly D'Angelo | Angelo Tsarouchas |