Hi yes his parents also went to Australia they arrived in Sydney 19 Nov 1911 also most of their children went with them. Thirza died 15 October 1935 in Five Dock NSW at her daughters home, Mrs Lily Grubb.

Name: James Nichols
Age in 1911: 55
Estimated birth year: abt 1856
Relation to Head: Head
Gender: Male
Birth Place: Peters Marland, Devon, England
Civil Parish: Barnes
County/Island: Surrey
Country: England
Street address: 17 Church Road, Barnes
Marital Status: Married
Years Married: 30
Estimated Marriage Year: 1881
Occupation: Builder
Registration district: Richmond
Registration District Number: 41
Sub-registration district: Mortlake
ED, institution, or vessel: 22
Household schedule number: 196

James Nichols 55
Therze Nichols 56
John Richard Nichols 26
Annie Therze Nichols 22
Richard Nichols 21
Harry Perr Nichols 18
Lily Nichols 17
Violet Nichols 16
Rebecca Nichols 82

Name: James Nichols
Age: 44
Estimated birth year: abt 1857
Relation to Head: Head
Gender: Male
Spouse: Thirza Nichols
Birth Place: Reters Marland, Devon, England
Civil Parish: Barnes
Ecclesiastical parish: St Mary
County/Island: Surrey
Country: England
Street address: This looks like ''The Dolphins''
Occupation: Builder
Registration district: Richmond
Sub-registration district: Mortlake
ED, institution, or vessel: 18

James Nichols 44
Thirza Nichols 44
James Nichols 19
Mahala Nichols 18
John Nichols 16
George Nichols 15
Ethel Nichols 14
Anne Nichols 12
Harry Nichols 8
Lily Nichols 7
Violet Nichols 6

1891 Census
Name: George H Nichols
Age: 5
Estimated birth year: abt 1886
Relation: Son
Father's name: James Nichols
Mother's name: Thurza H Nichols
Gender: Male
Where born: Fulham, London, England
Civil Parish: Fulham
Ecclesiastical parish: St James
County/Island: London
Country: England
Street address: 2 Wandsworth Bridge Road, Fulham, London, England
Occupation: of father Builder & ironmonger
Registration district: Fulham
ED, institution, or vessel: 47

James Nichols 34 born Peters Marland, Devon, England
Thurza H Nichols 34 born Plymouth, Devon, England
James W Nichols 9 ** all children born Fulham, Middlesex, England
Mabala Nichols 8
John R Nichols 7
George H Nichols 5
Ethel Nichols 4
Annie Nichols 2
Richard Nichols 1

In 1881 James and Thurza were living at Italian Villa, Fulham, London, England occ carpenter and joiner

Baptism
George Henry Nichols
Record Type: Baptism
Baptism Date: 4 Mar 1890 States born 18 Nov 1885
Father's name: James Nichols
Mother's name: Thirza Hawton Nichols
Parish or Poor Law Union: Parsons Green St Dionis
Borough: Hammersmith and Fulham
Register Type: Parish Registers

Also baptised same day:

James William b 17 Sep 1881
Mabala b 17 Dec 1882
John Richard b 6 Apr 1884
Ethel b 12 Dec 1886
Thurza Annie b 25 August 1888 (Annie in Census above?)
Richard Ambly b 12 Dec 1889


Marriage
Name: Thirza Hawton Nichols
Registration Year: 1880
Registration Quarter: Oct-Nov-Dec
Registration district: Bideford
Inferred County: Devon
Volume: 5b
Page: 955

Spouse : James Nichols

England and Wales Census, 1871
Name James Nichols
Event Type Census
Event Date 1871
Event Place Peter Marland, Devonshire, England
Enumeration District 3
Gender Male
Age 14
Occupation Scholar
Relationship to Head of Household Son
Birth Year (Estimated) 1857
Birthplace Peters Marland, Devonshire
Entry Number 4
Affiliate Image Identifier GBC/1871/2197/0059


James Nichols Head M 49 Peters Marland, Devonshire
Martha Nichols Wife F 44 Little Torrington, Devonshire
John Nichols Son M 16 Peters Marland, Devonshire
James Nichols Son M 14 Peters Marland, Devonshire
..........................................................................

Birth
Name: Thirza Hawton Nichols
Registration Year: 1856
Registration Quarter: Jul-Aug-Sep
Registration district: Plympton St Mary
Inferred County: Devon
Volume: 5b
Page: 196

Baptism
Name Thirza Hawton Nicholls
Baptism date 31 Oct 1858
Denomination Anglican
Baptism place Little Torrington
Father's name John
Mother's name Rebecca Weekes
County Devon Country England
Archive South West Heritage Trust
Archive reference 4015A/PR/1/3
Record set Devon Baptisms

Hi Family Detective & Markav,..........
Your assistance has provided me with much needed detail, thank you both so much, and thank you to all those who took the time to view my question.
............ I think I will be busy for quite a while. :)

........... Thank you Bob