Irwin March is the son of Dr. William B. March and Minnie Field.William's parents, Silas and Elizabeth Stevinson, came to California in 1852 and settled in San Joaquin County. There is a family history written by Irwin at the Calaveras County Historical Society. William practiced medicine in Calaveras County, Ca.and Irwin attended school there.The family home is still standing in Burson, CA. My husband is the great-grandson of William's brother Archibald. Hope this helps.