At John's baptism at Heworth, St Mary (as linked by Boo)
14 May 1840 John Gallon, of Felling Shore, son of Edward (paper maker) & Esther Gallon — so father Edward Gallon is a paper maker.
24 July 1875: Alston Herald and East Cumberland Advertiser
At Felling, at Brandling Terrace, 19th inst. aged 69, Mr Edward Gallon, paper maufacturer, much respected.
1871
Brandling Terrace, Heworth
*Richard Gallon, widower, 65, paper manufacturer, b Newcastle
plus his married daughter Mary (Hind), 26, Felling Shore (see Mary 1844 in Boo's list)
(plus Mary's husband and children)
transcribed Richard at FindMyPast, original unclear but I think Edward is a better fit.
transcribed Malard (!) at A*y
Newcastle-upon-Tyne,St. John
22 Mar 1807 Edward Graling, born 29 Apr 1806, 3rd son of Simon Graling (papermaker, native of Costey, Norwich) by his wife Mary Mitchison (daughter of Thomas Mitchison, native of Simonburn parish, Northumberland)
DRO has a note and annotations to the effect that they believe that this is Edward Gallon.
Note 1837 baptism linked by Boo for Edward's (first?) son, Simon.