What other information do you have as you have written KEMPSON's of Qld....
Marriages Jun 1891
KEMPSON John Flower Risbridge 4a/833
SORSBIE Elizabeth Louisa Risbridge 4a/833
According to the 1901 census, John F and Elizabeth L with children Mary F, Elizabeth C, John R and Rosamund S, were still in England. He was a retired chemical manufacturer at the age of 46 years.
Australian Electoral Roll
1925
KEMPSON Elizabeth Louise Springfield, Bald Hills HD
KEMPSON John Flower Springfield, Bald Hills No occupation
KEMPSON Rosamound Sarsbie Springfield, Bald Hills HD
KEMPSON William Robert Springfield, Bald Hills, Farmer
Death
1928/3440
KEMPSON John Flower
7 Jan 1928
Father William Kempson Mother Elizabeth Flower
England & Wales, National Probate Calendar (Index of Wills and Administrations), 1861-1941
KEMPSON John Flower of Sheringham Street, Wynnum near Brisbane Queensland Australia died 7 Jan 1928 Probate London 19 May to Charles KEMPSON Architect. Effect £2022.10s.
I'll have a search for their passenger records.
Cando