Wemple attended the public schools in Fultonville and Ashland Academy, and graduated from Union College in 1866.

Then he studied law for a time and engaged in the foundry business in partnership with his two brothers.

He was President of the Village of Fultonville in 1873, and Supervisor of the Town of Glen from 1874 to 1876.

He had burned down his own foundry, after it had been sold at an assignee's sale, and several other buildings in and around Fultonville.

He died on December 18, 1920; and was buried at the Maple Avenue Cemetery in Fultonville.