How old is petey corbin?

Well, if you're talking about Petey Corbin in the book 'Petey' by Ben Mikaelsen, Petey Corbin is actually Clyde Cothern. Since Petey Corbin/Clyde Cothern was born in the 1920s, and people with disabilities don't live too long (around 30-60 years) he probably died between the 1950s-1980s. Today he would be somewhere around 90-100 years old.