The 1851 Census recorded:
Tresco, Isles of Scilly, Cornwall:
Jonas Nicholls, head, married, age: 42 years, occupation: boot and shoemaker, born: Tresco
Rebecca Nicholls, wife, married, age: 40 years, born: Tresco
John Nicholls, son, unmarried, age: 16 years, occupation: farm labourer, born: Tresco
Jonas Nicholls, son, aged: 13 years, occupation: scholar, born: Tresco
Rebecca Nicholls, daughter, aged: 5 years, occupation: scholar, born: Tresco
Elizabeth Nicholls, daughter, aged: 1 year, born: Tresco

The 1861 Census recorded:
Northward, Tresco, Isles of Scilly, Cornwall:
Jonas Nicholls, head, married, age: 52 years, occupation: shoemaker, born: Tresco
Rebecca Nicholls, wife, married, age: 49 years, occupation: shoebinder, born: Tresco
Rebecca Nicholls, daughter, aged: 16 years, occupation: domestic servant, born: Tresco
Elizabeth Mary Nicholls, daughter, aged: 11 years, occupation: scholar, born: Tresco
Agnes Mary Craggs, visitor, age: 2 years, born: Exeter, Devon

The 1871 Census recorded:
Northward, Tresco, Isles of Scilly, Cornwall:
Jonas Nickolls, head, married, age: 62 years, occupation: shoemaker, born: Tresco
Rebecca Nickolls, wife, married, age: 60 years, born: Tresco
Elizabeth Mary Nickolls, daughter, aged: 21 years, occupation: dressmaker, born: Tresco

At the time of daughters Elizabeth and Augusta’s baptisms in 1879 & 1880 the family was noted as living at St Mary’s and father, Thomas, a “coastguard”


The 1881 Census recorded:
Garrison, St Mary’s, Isles of Scilly, Cornwall:
Thomas H Richards, head, married, age: 31 years, occupation: boatman coastguard service, born: Newlyn Paul, Cornwall
Elizabeth M Richards, wife, married, age: 31 years, occupation: boatman’s wife, born: Tresco
Elizabeth Mary Richards, daughter, aged: 1 year, born: St Mary’s
Augusta M Richards, daughter, aged: 4 months, born: St Mary’s

Elizabeth and Thomas were noted in her brother John’s correspondence of 1884 (refer transcript under John Nicholls - see ‎363).