English date is Oct 2, 1990, which corresponds with 13 Tishrei 5751
The Hebrew date on the plaque shows the wrong year -- 5750

We can assume that this was a typo. The grave has no Hebrew date but agrees that date of death was Oct 2, 1990. https://www.findagrave.com/memorial/127145136/gail-lewe (sharon memorial park)

E. Ganin Aug 2026