Hi Alan I'm in Adelaide and do free research for anyone around the world who want me to look for information re their ancestors from the records here in the Mortlock Library.
I saw your request and had a look for some information, but found very little.I'm not sure that all of what I found actually matches what you have requested, but I'm forwarding it anyway, Perhaps it can be of some help.
1. Wilson John born 10/5/66 at Red Banks (is actually Reed Banks) Port Gawler, Dis. Port Germein to Wilson Clarke * Ellen Preston ref b43 p477
2. Richard Dormer born 4/4/82 Dalkey Dis. Gilbert to W.J. Clark & Ellen Preston.
1. Wilson aged 24yrs, marital status not recorded, son of H.G. James Wilson married 25/8/64 to Ellen, aged 20 yrs, marital status not recorded, daughter of Maurice Preston at Trinity Church, Adelaide. Dis. Adelaide ref b59 p308
2. Richard Dormer aged 21yrs, son of Wilson John Wilson married 13/10/1904 to Myrtle Daisy, aged 20yrs, single, daughtr of Samuel eaton at Residence of Joseph Foote, Kadina Dis. Daly. ref b221 p219.
I'm sorry there isn't more, but I hope the above will be of some help.Feel free to ask if there is anything/anyone you want looked up. Just get back to me on my email address.