 Petrus Josephus Adema, son of Sybrandus Adrianus Adema and Anna Catharina Nagtheim.Born 19 Mar 1828 Leeuwarden, died 24 Apr 1919 Amsterdam, age 91 years, buried Buitenveldert Married to:  Maria Elisabeth KortemanBorn 20 Apr 1830 Alkmaar, died 4 Sep 1867 Leeuwarden, age 37 years, buried Wijtgaard | |||
| 2nd marriage Petrus Josephus Adema, son of Sybrandus Adrianus Adema and Anna Catharina Nagtheim. Married to: Children: 1. Sybrandus Petrus Henricus AdemaBorn 26 Mar 1860 Leeuwarden, died 20 Jun 1926 Amsterdam, age 66 years, buried Amsterdam 2. Joseph Sybrandus Petrus Maria AdemaBorn 11 Feb 1877 Amsterdam, died 24 Jan 1943 Amsterdam, age 65 years, buried Buitenveldert | |||