John Christoffersen
He competed in the freestyle middleweight and the Greco-Roman middleweight events at the 1924 Summer Olympics . 
<triplet> freestyle middleweight <subj> 1924 <obj> point in time <triplet> Greco-Roman middleweight <subj> 1924 <obj> point in time <triplet> 1924 Summer Olympics <subj> 1924 <obj> point in time