We are working to apply for n-565 for my mother in law who has been a working American citizen for 50 years. She now needs naturalization records to apply for

We are working to apply for n-565 for my mother in law who has been a working American citizen for 50 years. She now needs naturalization records to apply for Real Id and continue domestic travel. The issue is that she had a divorce and name change, and we can’t find her name change record with the county superior court. N565 requires the name change evidence We have tried FOIA request to US CIS and no records were found Can we use her 50 year social security contribution record as evidence of the name change ? What other pieces of evidence could we present ? Is there a hearing or more dynamic forum we could present the case to ? The forms for naturalization and real id have narrow and rigid qualifications .