I've not been able to find out much about the history of Harrison's Road, except that a Saxon spear was found there in 1877, when a sewage works was being constructed!
I know that when Samuel Harrison and his wife Ann Vickers both died, their son, Samuel junior, born Edgbaston 1819 took over the running of Hill Farm for a while. But by the time of the 1871 census, he had moved to another part of Birmingham and become a dairyman.
My third Great Grandfather, John Vickers Harrison, born Edgbaston, 1811 was a dry salter-preserving meat initially and seemed to drift between Birmingham and London. He had a lover, Eleanor Gwynn in London and they had 9 children together, including my second Great Grandfather, John Gwynn Harrison, 1836, Southwark. They never married and John Vickers was listed as a batchelor on his will.
I've no idea if the family owned Hill Farm, or if they were tenant farmers. If they owned it, they probably eventually cashed in on the land values, as the area morphed into a prosperous suburb of Birmingham.
Steve.