kbhuffaker wrote:She is asking for it so she can complete some genealogy her mother had started but didn't complete.
To do genealogy work, the mother's membership record number is absolutely no help. What she needs to do is to take over her deceased mother's FamilySearch account. She can make this request by contacting FamilySearch Support at 866-406-1830.
I said that the MRN is absolutely no help; that may not be entirely correct. One way this sister could access most of what her mother did on FamilySearch is to use the
Helper feature. To use that feature, you need the Helper Number of the person you're trying to help; for Church members, by default that Helper Number is the last 5 characters of the person's MRN. The mother might have changed her Helper Number, but if not, knowing the MRN would allow the daughter to use Helper Mode. However, even though the MRN could be helpful, I still doubt the propriety of a clerk giving this information out. He has no way of knowing the mother's wishes for who should have access to her FamilySearch account; that's best sorted out by FamilySearch Support.
Questions that can benefit the larger community should be asked in a public forum, not a private message.