He married Anna Whitmer. Anna was born on June 4, 1761 in Rockingham County, Virginia. She was the daughter of John Jacob Whitmer and Anna Snyder (Schneider).
John and Anna's children included:
John Baker (1784, married Mary Spader),
Susannah Baker Cupp (1786, married Henry Cupp),
Elizabeth Baker Cupp (1789, married Frederick Cupp),
Jacob Baker (1794-1870, married Rebecca Crickenbarger),
Mary Baker Spader (1800, married Jacob Baker),
Philip Baker (1801, married Margaret Ruebush)
Samuel Baker (1804, married Elizabeth Williams), and
Frances Baker Showalter (1806, married Peter Showalter).
Johannes died on May 15, 1830 in Virginia and Anna died on May 17, 1838. They are both buried at Friedens Church Cemetery, Mt. Crawford, Virginia.
First printed in Boston 1745
Friedens was originally a Reformed Luthern church. It is in the southeast part of Rockingham County near Mt. Crawford. Members of the Kessler and Baker families were associated with Friedens.