Believe this is your man.

1860 United States Federal Census about Robert Weaver
Name: Robert Weaver
Age in 1860: 18
Birth Year: abt 1842
Birthplace: Pennsylvania
Home in 1860: Norristown, Montgomery, Pennsylvania
Gender: Male
Post Office: Norristown
Value of real estate: View image
Household Members:
Name Age
Robert Iredell 50 Printer
Teresa Iredell 47
C Jones Iredell 24
James W Iredell 18
Robert Iredell 15
Phoebe Iredell 12
Loyd Jones 45 Printer
Lizzie Jones 30
Massey M Jones 38 Teacher
Mary Amos 14
Sarah Thorn 34
Annie Thorn 4
Freeman Davis 20 Apprentice Painter [sic]
Robert Weaver 18 -do-
Egbert Busby 18 -do-