Marshalls of Ormskirk

HiI am fairly new to this ancestors are MARSHALL from ormskirk so far I know My father was Colin MARSHALL who was born in Sept 1934 to Margery MARSHALL born 1905 to John Marshall born 1871 and Ann MARSHALL was Rimmer born 1876 they resided at 58 a lytham road southport I am now a little unsure but I think Johns father Was Robert MARSHALL born 1843 I think Robert married a Margery Wright but not sure. I also think they resided at Marsh-side Road