Visitor Visa for In-laws - Both are not working - Self sponsoring with their savings

[hello999]

Hi All,

i am filling up DS-160 for my In-laws. what should i give as Occupation? my mother in law is house wife from starting, my father in law is not working from 10 years. he used to work as private contractor and have savings. he has very little agriculture lands(not farming currently). He has enough savings in bank account for the trip. can he just take his bank statement ? 

1) what should i give his occupation in DS-160? (Self employment or something else? i can not give as retired - He is 62 years old)
2) Where should i give my H1 details and my wife's H4 details in DS-160?