Oil City, PA Fitzpatrick family (no replies)

I am looking for my Fitzpatrick family. They moved to Oil City from Pittsburg, PA. I've been told that my ggrandfather William Fitzpatrick was an oil worker so I'm hoping there's a connection here. My ggrandmother Emma O'Kelly Fitzpatrick and William had four daughters Thresa, Mary, Margaret, and Ann. William, Mary, & Ann came to Michigan at some point. Emma was still alive in 1937 - my father remembers visiting the farm as a child.

Any help would be greatly appreciated.

Thank you!

Nancy Kruse
Grand Rapids, MI