Orr family that lived in the Waterside Londonderry in 1901 census and townland Lismacarol Londonderry

Looking for James Orr's 2nd family to Rebecca Young & 6 kids . for I know and can account 3 of them but still looking for John, Robert ,Cassie. And I do not know who is first family was!! Hope to hear from anyone that may have connections or have in their research seen any of my family... Thanks Diane