To be permanently and totally disabled within this agency's definition means that
                  the individual has some permanent physical or mental impairment, disease or loss that
                  precludes him from engaging in any useful or gainful occupation, such as holding a
                  job or homemaking, and results in his being unfeasible for vocational rehabilitation.
                  Useful or gainful employment as used in this definition means activities which result
                  in housekeeping and performing the activities of daily living or which produce income
                  either in kind, cash or services. Activities carried out as a hobby or part of occupational
                  therapy are not considered as gainful occupation. Homemaking involves ability to carry
                  the home management and decision-making responsibilities and provide essential services
                  within the home for at least one person in addition to one's self.
               
               Senate Bill No. 454, Acts of the 60th Legislature, Regular Session, 1967 states in
                  part “Assistance to the Permanently and Totally Disabled shall be given under the provisions
                  of this Act to any needy person...who is permanently and totally disabled as hereinafter
                  defined.... The term “permanently and totally disabled”, as used in this Act means that the individual has a permanent physical or mental
                  impairment, disease, or loss, or a combination of such which is verifiable by medical
                  findings, which is irreversible, or progressive, and not amenable to treatment, or
                  requires treatment that is continuous, extremely hazardous or of questionable benefit,
                  and renders the individual totally disabled, as demonstrated by the fact that he is
                  restricted in his performance of usual activities of daily living to the extent that
                  he requires services or the presence of another person in performing these activities,
                  and which permanently precludes the applicant from engaging in a useful occupation
                  as a homemaker or as a wage earner.”