Gloucester Cnty, NJ Armbruster

I'm looking for an Elmy A. Armbruster b. 20 NOV 1835 in Gloucester, New Jersey. Her parents may have been David and Ann. I have her in the 1850 census as living in the inn of Levi Madera. She eventually married Andrew Hendrickson and named one of her sons' Levi Madera Hendrickson.

I can't seem to find any definite information on the Armbruster family. Elmy seems to have just popped up.

Any additional information would be greatly appreciated.

Thank you.