Cruwys played for Kent between 1963 and 1968, appearing in ten matches. Cruwys topped the England team's batting averages for all three games played in Australia with 70.5. She played in the England team against New Zealand in
Wellington, She was also a member of the England women's team which toured the West Indies in 1971. where she and
Rachael Heyhoe Flint formed "the main strength" of the side playing against Australia in Wolverhampton in 1976. At the time of her selection for the England women's team in 1976, she was described as "reputedly the finest fielder England women's cricket has produced." At a charity match in 1972 between a
Lord's Taverners men's team and a women's team led by Rachael Heyhoe Flint, Cruwys "won frequent applause and took two catches in the deep, of which any man would have been proud," and in the
1973 Women's Cricket World Cup, "the fielding of both teams was a joy to watch and especially for England, Jill Cruwys' throwing in from the deep, which would put many county players to shame." ==Personal life==