In 1841, the family came to Jennings County, Indiana, living in Geneva and Vernon townships, until leaving the state in 1884. John Henry was in charge of the County Poor Farm in Jennings County for 26 years.
DAVID MACK BERKMAN
b. 11 November 1851, near Queensville, Jennings County, Indiana, to John Henry and Martha (McJenkins) Berkman
d. 13 February 1912, Rochester, Minnesota
m. 26 June 1877, Rochester, Minnesota Gertrude Emily Mayo
b. 18 July 1853, Lafayette, Tippecanoe County, Indiana, to Dr. and Mrs. William Worral Mayo
d. 22 July 1938, Rochester, Minnesota
Children with Gertrude Emily Mayo:
Daisy Louise (1878-1976) married Henry S. Plummer
Martha M. (1880-1971) married Ralph V. Blethen
Helen Phoebe (1883-1952) married Edward Starr Judd
David Mayo (1886-2958) married Frances Kiefer Scott
John Mayo (1898-1978) married Margaret Sherman
David was a veterinary surgeon; he left Indiana before 1877. Gertrude was a sister to Dr. William J. Mayo and Dr. Charles H. Mayo; her family left Indiana in early 1855. The Berkman and Mayo families both lived in homes on the site of the older portion of the Mayo Clinic building.