Dr. G. W. Slack, MD moved to Delaware County with his parents when he was just 12-years-old in 1837. He married Mary Louise “Louisa” Hardin in 1854 in Madison County, Indiana. He graduated from Rush Medical College and opened a practice in Yorktown, Indiana in 1854. He practiced in Yorktown until his death in 1886.
Ancestry-Research-file-Slack-George-Washington-JH 1903-Physicians-Who-Died-Since-1865-Newspapers.com_