It seems your John Taylor's parents may have been John and Hannah. I can see a "snippet" in Google books that seems to refer to them. Robert seems to be the other son, brother to your John. (My search terms were
"John Taylor" bricklayer leeds.)
Miscellanea: Volume 26
books.google.com
Thoresby Society - 1924 - Snippet view
Robert Taylor of Leeds, Bricklayer, d. 13 Dec., 1835, aged 41. Four of his Children who died in Infancy. 729. Hannah wife of John Taylor, Builder, of Leeds, d. 3 March, 1828, aged 69. John her husband, d. ...