Don't know if you got this info; I just saw this post.

Minnesota Birth Index, 1935-2002
about Mathilda Hansena Pfieffer
Name: Mathilda Hansena Pfieffer
Birth Date: 8 Nov 1938
Birth County: Steele
Father: Frank E. Pfieffer
Mother: Malvina B. Madson
File Number: 1938-MN-049030

This came up on same page so I thought I'd include it:

Minnesota Birth Index, 1935-2002
about Kathy Ann Fett
Name: Kathy Ann Fett
Birth Date: 8 Dec 1957
Birth County: Mower
Father: Carmie Ernest Fett
Mother: Mathilda Hansesa Pfieffer
File Number: 1957-MN-060621

Minnesota Birth Index, 1935-2002
about Anita Ann Slowinski
Name: Anita Ann Slowinski
Birth Date: 18 Jul 1959
Birth County: Mower
Father: Joseph Paul Slowinski
Mother: Angela Emma Krebsbach
File Number: 1959-MN-053832

Minnesota Marriage Collection, 1958-2001
about Anita A Slowinski
Name: Anita A Slowinski
Gender: Female
Birth Date: abt 1959
Age: 18
Spouse: Randy A Fett
Gender: Male
Spouse Birth Date: abt 1959
Spouse Age: 18
Marriage Date: 22 Oct 1977
Filing Location (County): Mower
State: Minnesota

Minnesota Birth Index, 1935-2002
about Randy Allen Fett
Name: Randy Allen Fett
Birth Date: 12 Nov 1958
Birth County: Mower
Father: Carmie Ernest Fett
Mother: Mathilda Hansesa Pfeifer
File Number: 1958-MN-041001

Minnesota Birth Index, 1935-2002
about Amber Ann Fett
Name: Amber Ann Fett
Birth Date: 17 Jun 1984
Birth County: Olmsted
Father: Randy Allen Fett
Mother: Anita Ann Slowinski
File Number: 1984-MN-030119

Minnesota Birth Index, 1935-2002
about Cody James Fett
Name: Cody James Fett
Birth Date: 4 Apr 1986
Birth County: Freeborn
Father: Randy Allen Fett
Mother: Anita Ann Slowinski
File Number: 1986-MN-015388

Minnesota Birth Index, 1935-2002
about George Joseph Fett
Name: George Joseph Fett
Birth Date: 8 Dec 1978
Birth County: Mower
Father: Randy Allen Fett
Mother: Anita Ann Slowinski
File Number: 1978-MN-032443

Minnesota Birth Index, 1935-2002
about Jesse Ryan Fett
Name: Jesse Ryan Fett
Birth Date: 6 Feb 1983
Birth County: Olmsted
Father: Randy Allen Fett
Mother: Anita Ann Slowinski
File Number: 1983-MN-006095

Minnesota Birth Index, 1935-2002
about Krystal Marie Fett
Name: Krystal Marie Fett
Birth Date: 5 Jan 1992
Birth County: Carlton
Father: Randy Allen Fett
Mother: Anita Ann Slowinski
File Number: 1992-MN-000473

Minnesota Birth Index, 1935-2002
about Matthew Allen Fett
Name: Matthew Allen Fett
Birth Date: 26 Jun 1980
Birth County: Olmsted
Father: Randy Allen Fett
Mother: Anita Ann Slowinski
File Number: 1980-MN-032609