The census of 1900 shows that Ole and his wife were married 8 years. (1892?)

It shows that Ole emigrated in 1886 and is a naturalized citizen.

Those naturalization papers may hold some clues for Ole Aukland. Bookmark these:

http://mndiscoverycenter.com/research-center/genealogy

http://www.ironrangeresearchcenter.org/scripts/runisa.dll?ir...

Search for Ole Aukland, and you see 2 records that are available to order.
Immigrants seeking citizenship had to file first and 2nd papers, so perhaps in those papers, there must be information about his birth, parents, etc.

You can order online, or email for further help.
yourroots@mndiscoverycenter.com

First Name Last Name
OLE AUKLAND
Location: POLK
State: MINNESOTA
Reel #: 11
Vol #: J
Code #: 26
Page #: 52
Source:

First Name Last Name
OLE AUKLAND
Location: POLK
State: MINNESOTA
Reel #: 19
Vol #: LNPA
Code #: 49
Page #: 174
Source:

As far as children go,
Before the census, and at the time of the census, the couple Ole and Emma Aukland had three children, Gustava Sisilia, Bennie, and Oliver.

The Minnesota birth index shows that after the census, with the last name Aukland, mother's name Emma, in Polk County, these children were born.

http://people.mnhs.org/bci/search.cfm
(you can search and order their birth records for $9 each)

Aukland, Clarence
Date of Birth: 15 Jun 1900
Mother Maiden Name: Emma
certid# 1900-18817
County of Birth: Polk

Aukland, Mellard
Date of Birth: 10 Aug 1902
Mother Maiden Name: Emma
certid# 1902-19186
County of Birth: Polk

The Minnesota death index shows these deaths, and sending for these records may indicate where the father was born.
You can order these records also, for $9 online.
http://people.mnhs.org/dci/

AUKLAND, BENNIE
Date of Birth: 18 Dec 1893
Place of Birth: MINNESOTA
Mother Maiden Name: HAUGE
certid# 1981-MN-003031
Date of Death: 19 Jan 1981
County of Death: CLAY

Here is your Oliver's grave in Washinton state. The link includes a photo.
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=12...

Birth: Mar. 29, 1898
Nielsville
Polk County
Minnesota, USA
Death: Nov. 23, 1976
Port Townsend
Jefferson County
Washington, USA

Husband of Margaret E. Munday.


Burial:
Greenwood Cemetery
Chimacum
Jefferson County
Washington, USA

Created by: Larry Linehan
Record added: Jan 05, 2006
Find A Grave Memorial# 12894631

You can search here for Washington state info on Oliver's death and order.
http://www.digitalarchives.wa.gov/Record/View/94819BABE74EE5...

You can also send for Minnesota Marriage records online
http://www.mncounty.com/Modules/Certificates/Marriage/Defaul...

You may want to just search Aukland and see which records you want.

These stood out:

Polk county
Certificate No V/113
Date of marriage 4/18/1923
Groom's name BENNIE AUKLAND
Bride's name MABEL ENGELSTAD

FREEBORN
BK J PAGE 581
2/1/1924
AUKLAND, MILLARD
KITTLESON, EMMA

The mother Emma Aukland remarried in Polk County
POLK
K/353
4/4/1904
NYOLSNESS, ERICK
AUKLAND, EMMA

Ancestry.com has someone who has posted Ole Aukland's information, but if you do the math, they have his birthyear wrong. I think the month and year on the 1900 census,
Dec. 1868, is a better year. The following would make him just 15 at marriage.

DianesConnections Has a PUBLIC tree that includes:
Name: Ole Aukland
Birth: 12 Dec 1876 - Norway
Marriage: 1891 - Nielsville, Polk, Minnesota, USA
Death: 10 Sep 1902 - Nielsville, Polk, Minnesota, USA
Residence: 1900 - Hubbard, Polk, Minnesota
Sources: Y
Saved Records: Y
Tree Name: OUR FAMILY JEWELS

Saw this:
I do know that he was born Dec 12, 1867 in Norway and died Sept 10, 1902 in Nielsville, MN. He married Emma Hauge who died in 1963 in Nielsville.

If he was a church member there in Polk county, there are church records sometimes, which tell which parish in Norway the member was confirmed in. Which Norwegian language Lutheran church was in Nielsville at that time?

Maybe there was an obituary for Ole Aukland, at the time he died, or at least a newspaper article about his death.

POLK COUNTY HISTORICAL SOCIETY
Box 214 (mailing)
U.S. 2 East (museum)
Crookston, MN 56716-0214
218-281-1038
Contact: Dan Morlan, 218-281-2907
Hours: 12 to 5 p.m. Tuesday through Sunday; June 1 through September 30

I see that Bennie Aukland is buried at St. Petri Cemetery in Nielsville, so I would imagine that the St. Petri church records are the ones that you would want to have searched for Ole Aukland.

Bennie Aukland
Birth: Dec. 18, 1893
Death: Jan. 19, 1981
Burial:
Saint Petri Cemetery
Nielsville
Norman County
Minnesota, USA
Created by: Maureen Vaudrin Laughery
Record added: Aug 22, 2010
Find A Grave Memorial# 57489897