Welcome to RootsChat, Alan.
David Lodge married Sarah Bolton in Glasgow in 1936. You can view their marriage certificate at modest cost at
www.scotlandspeople.gov.uk (SP). It will tell you the full names of the couple's parents, icluding their mothers' maiden surnames.
Sarah Bolton or Lodge, mother's maiden surname Daly, died in Glasgow in 2004 aged 96. You won't be able to view this death certificate online because it's less than 50 years ago, but once things reopen after the coronavirus pandemic you can order a copy from SP, or you can find someone willing to go and transcribe it for you.
Solomon Bolton and Margaret MacMillan were married in Glasgow in 1892. You can also get their marriage certificate at SP, which will provide similar information to that of David Lodge and Sarah Bolton.
The 1901 census, which lists Solomon Bolton, wife Margaret, children Mary, Henry and Maggie, and cousin William McMillan, living in Govan. In 1911 they are in Plantation (Glasgow), with three more children: Solomon, Thomas and James.
A Francis Bolton was born in Hamilton in 1886. You can also view that birth certificate at SP.
In 1891 there is a family in Govan consisting of Mary Bolton, widow, 67; her son Solomon, 28; and her grandson Francis, 5. In 1901 there is a household in Plantation consisting of Henry Tranter, his wife Mary Ann, their daughters Elizabeth and Mary, his mother-in-law Mary Ann Bolton and his nephew Francis, aged 15.
You can also view the originals of all these census records at Scotland's People.