Was the Henry & Elizabeth Lamb mentioned below related to John LAMB who married Alice WALL 1844 St Albans NSW Australia?

Question

for consideration ...The Lambs & their neighbours were involved in incidents with the aboriginals_ Henry & Elizabeth Lamb had a house at Portland Head_firesticks were thrown on their house, Elizabeth barely snatching their sleeping baby from the blaze? p25 book Early Hawkesbury Settlers_Bobbie Hardy

source of the following record; NSW BDM online index

V1797699 1A/1797

LAMB

REBECCA

HENRY

ELIZABETH (CHAMBERS)