Thank you so much for clearing this up. I was able to remember my mother on the correct date. I have been using your date converter. For some reason the date converter translates all non leap year adar dates to adar II this year. So using the date converter got me a different result this year.

my mother passed away on March 18, 2004 which was not a leap year on the Hebrew calendar. Why is the Hebcal calendar putting her Yahrzeit this year into Adar II. It hasn't done that before. Her Hebrew date of passing was 25 Adar 5764