Margaret Jean Callender married name Margaret Whitbread, (born 1939) is a former athlete who competed for England.
Callender finished third behind Averil Williams in the javelin throw event at the 1957 WAAA Championships.
[1][2][3] She represented England in the javelin at the 1958 British Empire and Commonwealth Games in Cardiff, Wales.
In 1975 the couple adopted Fatima Whitbread and Margaret coached her at javelin.
This biographical article relating to a United Kingdom sportsperson is a stub.