<Tr> <Td> Longsjo, Art Art Longsjo </Td> <Td> United States </Td> <Td> 1956 </Td> <Td> Cycling </Td> <Td> 1956 </Td> <Td> Speed skating </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Kortelainen, Jorma Jorma Kortelainen </Td> <Td> Finland </Td> <Td> 1960 </Td> <Td> Rowing </Td> <Td> 1956 </Td> <Td> Cross-country skiing </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Posti, Hannu Hannu Posti </Td> <Td> Finland </Td> <Td> 1952 </Td> <Td> Athletics </Td> <Td> 1964 </Td> <Td> Biathlon </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Buisset, Jean - Marie Jean - Marie Buisset </Td> <Td> Belgium </Td> <Td> 1964 / 1968 / 1972 </Td> <Td> Field hockey </Td> <Td> 1964 </Td> <Td> Bobsleigh </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

Athletes that compete in both winter and summer olympics