Is this the supposed connection?
https://www.myheritage.com/names/john_le%20tisserJohn Thomas Le Tisser was born on month day 1850, at birth place, to Jean (John) Le Tissier and Mary E Steward (born Smyth).
Jean was born on July 3 1826, in St Peter Port, Guernsey, Channel Islands.Mary was born in 1831, in Magwan in Pyder Lanherne, Cornwall, England.
John had 7 siblings: Mary Ann Thompson? (born Le Tisser), Elizabeth Jane Pitt (born Steward) and 5 other siblings.
John married Agnes Le Tisser (born Clarke) on month day 1882, at age 32
Agnes was born on October 3 1856, in Amherst, Victoria, Australia.
They had 9 children: John Richard Le Tisser, Albert John Le Tisser and 7 other children.
John passed away of cause of death on month day 1932, at age 82.
https://www.myheritage.com/names/agnes_le%20tisserAgnes Le Tisser (born Clarke), 1856 - 1936
Agnes Le Tisser (born Clarke) was born on month day 1856.
Agnes married John Thomas Le Tisser on month day 1882, at age 26
John was born on March 20 1850, in Willguna, South Australia.
They had 7 children: Mabel Ester Esther Vincent (born Le Tisser), John Richard Le Tisser and 5 other children.
Agnes passed away on month day 1936, at age 80.
https://billiongraves.com/grave/John-Thomas-Le-Tisser/3672534#/Vic bdm death: 1932# 7785 LETISSER, John Thomas
Father's name: LETISSER John Thomas
Mother's name: Mary (Smythe)
Place of death: TALBOT
Age: 83
Vic bdm marriage: 1882 #5040 John Thomas LETISSER and Agnes CLARKE