5 6 ▁he ▁spent ▁a ▁year ▁as ▁guest ▁professor ▁in ▁Gra z ▁and ▁Vienna ▁and ▁in ▁ 1 9 6 0 / 6 1 ▁at ▁the ▁University ▁of ▁Te her an . ▁In ▁ 1 9 7 0 ▁he ▁should ▁have ▁retired ▁from ▁the ▁chair ▁in ▁Kansas ▁City ▁due ▁to ▁his ▁age , ▁but ▁he ▁went ▁on ▁lect uring ▁on ▁a ▁priv ately ▁fin anced ▁chair ▁( Hen ry ▁H askell ▁Chair ▁of ▁Soci ology ) ▁for ▁another ▁ 2 1 ▁years ▁until ▁ 1 9 9 1 . ▁ ▁In ▁ 1 9 2 8 ▁Man heim ▁married ▁Anna ▁Soph ie ▁Wit ters ▁( 1 9 0 0 – 1 9 8 8 ) ▁from ▁Os nab r ück . ▁They ▁had ▁one ▁son ▁Frank ▁Tib or ▁Man heim ▁(* 1 9 3 0 ). ▁In ▁ 1 9 9 1 ▁Man heim ▁married ▁the ▁US - American ▁psych ologist ▁She el agh ▁Graham ▁Bull ▁(* 1 9 4 3 ▁in ▁Canada ). ▁ ▁Ernest ▁Man heim ▁died ▁in ▁Kansas ▁City ▁in ▁ 2 0 0 2 ▁at ▁the ▁age ▁of ▁ 1 0 2 . ▁ ▁The ▁Sch olar ▁ ▁The ▁years ▁in ▁Germany ▁can ▁be ▁seen ▁as ▁the ▁period ▁of ▁Man heim ▁as ▁a ▁the or ist . ▁Edu c ated ▁in ▁the ▁sciences , ▁in ▁philosophy ▁and ▁in ▁social ▁sciences , ▁he ▁changed , ▁influenced ▁by ▁Hans ▁Fre yer , ▁from ▁philosophy ▁to ▁soci ology . ▁His ▁doctor al ▁th esis ▁was ▁written ▁under ▁the ▁influence ▁of ▁strong ▁philosoph