| Mark Skinner | |
| Gender | |
| Status | |
| Relatives | Wife: Ellen Skinner Children: Agnes Skinner and Stevie Skinner Son-in-Law: Sheldon Skinner (Deceased) Grandchildren: Seymour Skinner, June Skinner, Marie Skinner, Peggy Skinner, and Peter Skinner Granddaughter-in-Law: Paula Skinner Great-grandchildren: Seymour Skinner Jr., Elena Skinner, Sheldon Skinner Jr., Edna Skinner, Greg Skinner, and Luis Skinner |
Marcus "Mark" Skinner was the father of Agnes Skinner and the father-in-law of Sheldon Skinner. Also, the maternal grandfather of Seymour Skinner