After years of trying to get pregnant, Patty learned she was pregnant on the cusp of the Wendigo War and wanted to take every precaution. She called up her younger sister to help with the pregnancy and birth. The Alpha at the time, Abraham Ulric (Patty's father-in-law) chose it was the best option to turn both of Patty's sibling to better ensure her safety when the violence with the wendigos broke out.
January 12, 1973, Macon was born in a home birth. Unfortunately, due to the lack of a hospital and complications during labor, Patty died. In the aftermath, the aunt became the one charged with Macon's care. She was probably midwife and wet nurse which made taking care of the baby during the war easier.
The aunt has played a maternal role for Macon and a guiding hand of support throughout the years. When Abraham passed, she transferred her loyalty to Tobias Ulric and helped with the duties of the farmhouse and the children. It is likely she stayed close to Tobias in the last few years when the cancer took its toll on him. She's stood alongside Macon when he chose to step up as Alpha and recently transferred her loyalty to her nephew.
This character should come across as compassionate and strict. It is she who runs the farmhouse and the younger pups when Macon or Sybil aren't around. She has probably kept close to Charlie and Sybil, help groom them for the roles they'll need to take now that Macon is Alpha. After all, she has lived through three generations of alphas at this point and has been part of the inner circle since practically the beginning.
She also had a son some years after Macon was born, but was not married nor does she talk about who the father is to her son.
First name is open, though I would suggest it is something that fits with the time she was born in. Her sister's name was Patty so something simplistic.
60-80. WEREWOLF. SUBORDINATE. DANAI GURIRA