Complex sentence: He became a Salvation Army officer himself in 1949, from the Harrow Corps., and in 1951 he married Joyce Foster, who had become a Salvation Army officer from the Hastings Citadel in 1949.
Split into simpler sentences: He became a Salvation Army officer himself in 1949, from the Harrow corps. In 1951 he married Joyce Foster, who became a Salvation Army officer from the Hastings Citadel in 1949.