 His son Zach Booker was a catcher in the minor leagues from 2007 until 2011.His son Avery is the head baseball coach for Greensboro College in Greensboro, NC

On June 29, 1989, McKeon, often called "Trader Jack", traded his own son-in-law to the Minnesota Twins for pitcher Freddie Toliver.He died of melanoma on March 30, 2019.