Moses Edwin Vail Clapp was born on May 21st, 1851 in Delphi, Indiana, son of Harvey Spaulding Clapp and Jane Abigail Clapp (nee Vandercook).  He went to law school at the University of Wisconsin.  At age 23, Moses married Harriet “Hattie” Allen of Indiana.
Moses and Hattie Clapp had four children:

Catrina Clapp, born in 1880.
Harvey Spaulding [...]