The ITF website lists cutoffs for the last 5 years, but unfortunately the software producing them isn't able to cope with players entering with their ATP/WTA ranking - resulting in some cutoffs for Grand Slams being listed unhelpfully as a 3 digit number or even unranked. The two sensible figures for Roland Garros were both 55, which seems about right (there are usually a few more missing than in the boys event). It would be very unusual if Jodie got in with a mid sixties ranking, but that will definitely be good enough for qualifying.