Michael Landon's Mary Sue: Pa's Many Many Careers

[Kerfuffler]

As Kim loves to mock in LHOTPodcast, Pa is inexplicably good at everything he sets his mind to. Except farming. He is a terrible, terrible farmer. 

Wheelwright (several eps)

Orthopedic cobbler ("Town Party, Country Party")

Addiction specialist ("Child of Pain")

[camom]

Home builder (pilot)

Furniture maker ("The Legacy")