Henry married Barbara C. Leonard on 29 Nov 1860 in , Oakland, Michigan. Barbara (daughter of Peter Leonard and Lavinia Carman) was born on 28 Apr 1840 in Waterford, Oakland, Michigan, United States; died on 5 Sep 1914 in Pontiac, Oakland, Michigan, United States; was buried on 8 Sep 1914 in Pontiac, Oakland, Michigan, United States. [Group Sheet] [Family Chart]

1. Fredrick Otto was born about 1862 in Michigan, United States; and died.
2. Frank Otto was born about 1864 in Michigan, United States; and died.
3. Lillian Otto was born about 1865 in Michigan, United States; died on 16 May 1899 in Pontiac, Oakland, Michigan, United States.
4. Mable Otto was born about 1872 in Michigan, United States; and died.
5. Henry Otto was born in Aug 1874 in Michigan, United States; and died.
6. Flora L. "Lizzie" Otto was born on 28 Sep 1881 in Michigan, United States; and died.