Outside of his political and professorship careers, Lothian was a past president of the Wisconsin Counties Association and the Lions Club. He was a member of many philanthropic organizations, including the Medinah Shriners and the Williams Bay Lions Club. Lothian was a Mason and was a member of the Scottish Rite of the Masons and former Master of the Glenview Masonic Lodge. He was a member and commodore of the Lake Geneva Yacht Club and served on the Board of Directors at the Geneva Lake Sailing School. As a Christian, Lothian was a member and deacon of the United Church of Christ in Williams Bay, Wisconsin.[1]
Lothian married Carol Ann (née Vichek) Lothian on April 20, 1957, in Bedford, Ohio, and have two sons.[1]
^ abWisconsin Legislative Reference Bureau (ed.). State of Wisconsin 2009-2010 Blue Book. Madison: Wisconsin Legislature Joint Committee on Legislative Organization, 2009, p. 41.