I am trying to find information on Michael Gayer and Nora or Norah Gayer.

I know Nora/h madien name is sullivan. She came from County Kerry. She married Michael and they lived in Manhatten. She left for good when my grandma was 10. They had Marge,Alice, Michael, James and Mary for children. Michael died very young as a blue baby. Marge, Mary and Alice attended ST helenas in the bronx. any help would be fantastic