I never met my Aunt, but we did correspond. She died when I was 20, and I will be 63 in May of 2024. My Mother, who just died 1/26/2024 wrote of her in her family tree files. Here is what she wrote:
On May 2, 1908 she was married to Frank Anthony McKnight by the mayor of Wilmington, DE. Mabel was an excellent telephone operator and was employed for years by Proctor and Schwartz.
Evidently, Proctor Schwartz was in the history of Proctor|Silex.
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On a side note, like her father and sister Reba, she had bright red hair.
2/19/2024. Please note: I am looking for Mabel's grave so I can connect her to her parents and siblings at the Find a Grave website.
2/21/ 2024 I have found her burial place, at sea.