Hi

I think this was the family of William WILLIAMS who was aged 60 in 1888 when he married Elizabeth HARRIS.

Death of the 1st wife.
South Australian Deaths Registrations 1842 to 1915
Elizabeth WILLIAMS
Date: 1887-12-20
Age: 56y
Status: M
Relative: William WILLIAMS (H)
Residence: Goodwood
Death Place: Goodwood
District Code: Ade/Book: 167/Page: 412

From the Biographical Index SA
WILLIAMS William b: c1829 CON ENG d: 24.7.1894 bd: Nth Rd SA
arr: 1864 ART UNION occ: Copper Miner
m: Eliz b: c1830 d: 20.12.1887
ch: Wm (1853-), Mary G. (1854-), Joshua (1856-), Eliz A.(c1859-1933), Alice K. (1861-)

The ships list for the Art Union has the above family.
Williams William aged 35 Miner from St. Blazey Cornwall
Elizabeth (Skinner) 34
William H. 11
Mary Grace 10
Joshua Skinner 8
Elizabeth A. 5
Alice Kate 3

FreeBMD have this marriage ( And also childrens birth records at St Austell)
Marriages Mar Q 1853
SKINNER Elizabeth St Austell 5c 208
WILLIAMS William St Austell 5c 208

South Australian Deaths Registrations 1842 to 1915
William WILLIAMS
Date: 1894-07-23
Age: 66y
Status: N
Relative: (not recorded)
Residence: Goodwood
Death Place: Goodwood
District Code: Ade/Book: 220/Page: 289

Buried together in the North Rd Cemetery.
WILLIAMS
ELIZABETH d.1887 AGE 56
WILLIAM d.1894 AGE 66
ELIZABETH d.1933 AGE 73

Rhonda