It is not possible to answer your question without asking you a number of other questions. To get you pointed toward an answer to your question, here are general rules to consider. Everyone who works and pays Social Security taxes earns up to four annual credits. Once you earn 40 credits, you become eligible for retirement benefits. The amount of your benefit depends on your date of birth, how much you earned while working and when you start receiving benefits.
Spouses also are eligible to receive retirement benefits from their spouse's record.
For example, a spouse who is 62 or older is eligible to receive up to half the retired spouse's benefit amount. If a wife also is eligible for her own retirement benefits, she will receive the higher of the two amounts. A divorced wife also can collect retirement benefits from a former husband's record if their marriage lasted 10 years and if she is currently unmarried and at least 62. If your mother is collecting half her current husband's benefit amount, getting divorced could affect her payments. Whether she might receive more from your father's record depends on whether your father is living and other factors.