Home › Authors › L. M. Irwin 👤 L. M. Irwin b. 1918 ยท 2 books Books by L. M. Irwin Guide to 500 early Irwin/Ervin Guide to 500 early Irwin/Ervin etc. families in the United States with adult children prior to the 1850 census 1991 The Irwin-Boer heredity The Irwin-Boer heredity 1989