[2] Before he could be deployed, he was diagnosed with tuberculosis and was sent to Fort San Hospital, where he spent the next four years, where he completed his Grade 12 and earned a certificate in business administration.
[2] In 1958, Deiter and his wife Inez were "the driving force in laying down the foundations for the inauguration of the Saskatoon Friendship Centre.
[4][5] During this time, he negotiated with then Premier Ross Thatcher, for a five percent hiring policy of First Nations and Métis people within the provincial government.
[1] in 1979 Deiter was one of five leaders who made a presentation to British Parliament about the concerns of Indigenous Peoples in Canada regarding the new Constitution.
[2] Deiter was appointed as an Officer of the Order of Canada in recognition of his work towards better education and social conditions for First Nations people.