Just a brief sideline regarding John Hogg, son of James and Ann (Robinson). You mentioned he married an Ann Murray.
JenB had found him with Robinson grandparents in 1851 above.
His marriage to Ann Murray likely 2nd Qrt 1858 in Gateshead/S. Shields - 10a/ 668.
1861 census I thought here, in Gateshead:
John Hogg 24 watchmaker b. Scotland
Ann Hogg 22 b. Gateshead, Durham
John Thomas Hogg 1 b. Gateshead, Durham - maybe?
https://familysearch.org/ark:/61903/1:1:26TD-LTQRobert Derry 30 brother in law furnace man b. Canterbury, Kent
Eleanor Derry 27 sister in law b. Gateshead, Durham
Robert Derry 2 nephew b. b. S. Shields
Likelyhood that John Hogg died young? One possible death for a 33 yr old John Hogg in Gateshead in 1st Qrt 1870, 10a/429
I thought Ann Robinson may have remarried. There is a marriage in 4th Qrt 1870 in Gateshead between an Ann Hogg and a George Douglass Talintyre ref 10a/1068.
1871 for the family:
https://familysearch.org/ark:/61903/1:1:VB8Q-7VTA gap there for Hogg children from first marriage. Some of the children died young? There was an Annie Robinson Hogg born in Gateshead in 1867 for example (not sure where David was living at this time, could be one of his children too?).
So these children of John's were with their grandmother in 1881? I think because Ann Murray/Hogg may also have died young, from a possible remarriage for George Douglass Talintyre in the late 1870s -
www.myheritage.com/names/george_talintyreYou have this census already:
Dwelling : Nk High Listers Yard, Gateshead, Durham.
Ann HOGG, head, annuitant, widowed, age 64, born Gateshead, Durham.
John Thomas HOGG, grandson, watchmaker, age 21, born Gateshead.
Mary Ann HOGG, grand daur, age 19, born Gateshead. (John or David's child?)
James HOGG, grand son, age 12, born Gateshead.
Annie, if the right death for John Hogg in 1870, he also seems to have been called John Thomas Hogg, the name he gave his first born son. I wonder if this middle name could help re the Hogg line
What were the names of David's children in order?
Monica