Johannes married Emilie Auguste Ulrike Lemke 12 Dec 1884, Jefferson, Wisconsin, USA. Emilie (daughter of Friedrich Wilhelm Lemke and Dorothea Maria Louise Charlotte Manke) was born 11 Mar 1858, Siedkow, Belgard, Pommern; died 14 Dec 1946. [Group Sheet]

1. Otto Hasse was born 8 Jul 1887, Watertown, Dodge, Wisconsin, USA; died 24 Jan 1969.
2. Theodore Hasse was born Abt 1889.
3. Elsie M. Hasse was born 9 Aug 1891, Watertown, Jefferson, Wisconsin, USA; died 29 May 1982.
4. Martha Hasse was born Abt 1893.
5. Martha Hasse was born Abt 1895.
6. Alma Hasse was born 10 Sep 1895, Johnson, Marathon, Wisconsin, USA; died 1905.
7. Lena A. Hasse was born Abt 1899.