Hello Mac,
I'm glad to hear from you. I certainly hope that we can figure out this Hastings Family together!
Here is what I have from the 1850 Census of Allegheny City, 3rd Ward:
Robert Hastings 38 Ire Shoemaker
Jane Hastings 33 Ire
David Hastings 12 PA
James S Hastings 10 PA
Nancy J Hastings 2 PA
Hope W. Hastings 20 Ire Shoemaker
What information do you have concerning Robert Hastings?
Are the dates you mentioned (1831-1855) birth and death dates?
The age of 38 given in the census would make his birthdate abt. 1812.
There were two Hopes. The other one was the son of the one mentioned above.
Tell me all of the information you have so far and how you are related and I will try to add to it.
Carol