The 1900 Federal Census has his date of birth as Jan 1832.
In the Federal Census of 1850, Joseph & Roby are living at Tiverton in the Wing household which consists of the following individuals: Edward Wing 78 MA, Elizabeth Wing 73 PA, Ann Hopkins 76 PA, Adeline Manchester 15 RI, Joseph Rounds 22 RI, Roby Rounds 20 RI, John Keefe 24 Ire, and Isaac Manchester 11 RI.
In the Federal Census of 1860, Joseph & Roby are living at Tiverton. They have a son, Arthur S. Listed next to them is Roby's grandmother Roby ("Rhoda") Dennis and her son Bradford Dennis.
In the Federal census of 1870, Joseph & Roby are still at Tiverton. With them is son Arthur 11, and Bradford Rounds 23, Joseph's half-brother.
In the Federal Census of 1880, Joseph & Roby, ages 49 & 50, are still at Tiverton. Joseph is a farmer. Both of their children have died.