William James Donlon, age 21 married Sarah Ann Payne, age 18 on 7 August 1877. both single Adelaide, bk 112,454. Place unrecorded. William's father is William Donlon and Sarah's father if John Payne.
William and Sarah's children; 1) Catherine Theresa Donlon born 7 June 1878. she married William Owen OFFLER at the residence of Mrs Ames, Malvern on 30 March 1907.
2) William John Donlon born 6 March 1881. There is no marriage or death listed for him up to 1915 in SA.
Henry Houston, age 19 married Mary Ganning, age 20 at St Andrew Church Adelaide on 29 April 1859. Bk38 Pg336. Henry's father was Thomas and Mary's father is Patrick Ganning.
I found eleven children
1) Margaret born 19 May 1860 at Sharinger (I think this is Sheringa, Port Lincoln). She died 6 May 1872 age 12yrs.
2) Thomas born 28 April 1862 Port Lincoln, He married Mary Wier on 4 Feb 1891. they had two kids listed Evelyn Mary 1894 and Percival James 1892. both Warrow, Pt Lincoln.
3)Jane born 7 July 1864 Duck Ponds. She married Thomas Henry Spalding 22 Nov 1883.
4)Catherine Mary born 11 June 1866, Duck Ponds.She married Matthew George Hawson on 5 March 1890.
5) Henry Alexander, born 14 Oct 1868, Duck Ponds
6)Samuel, born 20 Oct 1870 Pt Lincoln. He died 21 April 1873 age 2yrs.
7) Hugh Kennedy, born 27 Oct 1872, Pt Lincoln. He married Martha Alice Jones 29 Mar 1895.
8) Margaret Grace, born 8 Nov 1874.Died Warrow 27 July 1877 age 3yrs.
9) Ellen, born 20 Sep 1877, Warrow area.
10) John Clark, born 29 Oct 1879, Warrow. He married Ellen Palmer 31 Mar 1900.
11) Alfred Spalding, born 7 Sep 1881. He married Phoebe Elizabeth Purcell on 13 Aug 1906.
I'll send the children of these seperately.
Note that Ganning was spelt various ways in the records of births.Ganning is how it was spelt on the marriage certificate but was spelt Gannon, Gason Gaming Gannins Gurney etc So I'd say they were illiterate and would have left their mark on the certificates.
If you ever go to Pt Linclon check out the Public Library they have a great genealogy room where you can look at the original district records and see the certificates for yourself (it's all free too).