Ellen "B", The - Louisiana houseboat seen on the sitcom TAMMY/ABC/1965-66. Moored in the bayou of Ducheau County, the Ellen "B" is owned by Mordecai Tarleton (Denver Pyle), grandfather of 18-year-old Tammy Tarleton (Debbie Watson) who worked as a secretary for John Brent (Donald Woods), a wealthy plantation owner.