Andrew was known as Andy.

1877 Atlas of Waterloo Wellington counties, Erin Township Concession 8 Lot 21, A Nodwell Jr. east 1/2.

Canadian Genealogy Index, 1600s - 1900s, Date of Import: Feb 1, 1999, Internal Ref. #1.118.1.64034.13] Individual: Nodwell, Andrew, Jr. Event: Living Year: 1871 Place: Erin Township Province of record source: Ontario County of record source: Wellington Source: Gazetteer and Directory of the County of Wellington for 1871-2.  Publisher: A.O. Loomis & Co. Publication place: Hamilton, ON Publication year: 1871 Volume/Page(s): 175

Naturalization data base for Andrew Nodwell
Nodwell, Andrew  Canada  July 29, 1889  1st  Cavalier D-2 172   
Nodwell, Andrew  Canada  December 13, 1897 2nd Cavalier F-14 575 

Ontario, Canada Births, 1869-1907
Jas Robt Nodwell 29 Dec 1881 Male Wellington Andrew Nodwell Annabell Hunter  
Mary Maud Nodwell 30 Aug 1874 Female Unknown Andrew Nodwell Junior Anna Bell Hunter 
Wm Anderson Nodnell Nodwell Jr. 1 Jul 1877 Male Wellington Andrew Nodwell Jr. Annabella Hunter

Erin Township, Wellington Co., Ontario 1881 Census Records
1,2,Andrew Jr.,NODWELL,M,31,Ontario,Disciple of Christ,Irish,Farmer,M,
1,2,Annabell,NODWELL,F,25,Ontario,Disciple of Christ,Irish, ---,M,
1,2,Mary Maud,NODWELL,F,7,Ontario,none,Irish, ---,S,
1,2,William Andrew,NODWELL,M,3,Ontario,none,Irish, ---,S,
1,2,David Mercer,NODWELL,M,9/12,Ontario,none,Irish, ---,S,

1900 United States Federal Census about Andrew Nodwell
Name: Andrew Nodwell Home in 1900: Olga, Cavalier, North Dakota Age: 45 Estimated birth year: abt 1855 Birthplace: Canada Relationship to head-of-house: Head Spouse's name: Mary M Race: White Immigration year: 1889 Household Members: Andrew Nodwell 45, Mary M Nodwell 26, Mercer Nodwell 19, Howard Nodwell 15

1910 United States Federal Census about Andrew Nodwell
Name: Andrew Nodwell Age in 1910: 60 Estimated birth year: abt 1850 Birthplace: Canada English Relation to Head of House: Head Father's Birth Place: Ireland Mother's Birth Place: Ireland Spouse's name: Mary M Home in 1910: Olga, Cavalier, North Dakota Marital Status: Married Race: White Gender: Male Year of Immigration: 1889 Household Members: Andrew Nodwell 60, Mary M Nodwell 36, Earl Nodwell 8, Bertha M Nodwell 5, Marguerite Nodwell 2

1920 United States Federal Census about Andrew Nodwell
Name: Andrew Nodwell [Andrew Nadwell] Home in 1920: Olga, Cavalier, North Dakota Age: 69 years Estimated birth year: abt 1851 Birthplace: Ontario Relation to Head of House: Head Spouse's name: Mary M Father's Birth Place: Ireland Mother's Birth Place: Ireland Marital Status: Married Race: White Sex: Male Home owned: Own Year of Immigration: 1889 Able to read: Yes Able to Write: Yes Image: 361 Household Members: Andrew Nodwell 69, Mary M Nodwell 46, Earl P Nodwell 18, Bertha M Nodwell 15, Marguerite Nodwell 12, Stella G Nodwell 9
According to the census Andrew became a US citizen in 1897.

1930 United States Federal Census about Andrew Rodwell (transcription error)
Name: Andrew Rodwell Home in 1930: Olga, Cavalier, North Dakota Age: 80 Estimated birth year: abt 1850 Birthplace: Canada Relation to Head of House: Head Spouse's name: Mary M Race: White Household Members: Andrew Rodwell 80, Mary M Rodwell 56, Earl Rodwell 28, Marguerite Rodwell 22, Henry Carrin 28 (ancestry has the relationship as lodger)
Enumeration District 10-37, Subdistrict 2, Sheet number 5A
Nodwell Andrew, Married, White, 80 yrs old, born Canada, father born Northern Ireland, mother born Northen Ireland, English, immigration 1889
Nodwell, Mary M, wife, age 56, born Canada, father born Canada, mother born Canada, immigration 1889
Nodwell, Earl, age 28, born North Dakota, parents born Canada
Nodwell, Marguerite, age 22, born North Dakota, parents born Canada
Carrier, Henry, age 28, born North Dakota (I cannot make out his relationship)

Naturalization database records for Andrew
NameCountryDatePapersCountyVolumePageComments
 Nodwell, Andrew  Canada  July 29, 1889  1st  Cavalier  D-2  1
 Nodwell, Andrew  Canada  December 13, 1897  2nd  Cavalier  F-14  575   

Nodwell 74,l10,112 Cemetery records in Cavalier Co.