I am inquiring about any information about a George Stangel (1857-1941). His wife was Anna Stangel, nee. Mleziva (1864-1938) and their children were Barbara, Anna Christine, and Frank. I believe he came from Kewaunee County, Wisconsin.

Stagel and Mleziva are both Bohemian (Czech) names. Kewaunee county was indeed a Bohemian settlement. If you check the Family Search.org web page there is a 1930 census
https://familysearch.org/pal:/MM9.1.1/XC9C-PD5 Their daughter Barbara was living with them with her child and was apparently divorced.
While George A. Stangel was born in Wisconsin, he was living in Oregon by at least 1920. His son George was also living in Clackamas, OR at this time with his spouce and son Lewis. https://familysearch.org/pal:/MM9.1.1/M4ZY-W8D
The 1860 census shows George as a 1 year old child in Mishicott, Manitowoc Co, WI https://familysearch.org/pal:/MM9.1.1/MW93-X49, 1870 shows his family
Name: George Stangel
Estimated Birth Year: 1860
Gender: Male
Age in 1870: 10y
Color (white, black, mulatto, chinese, Indian): White
Birthplace: Wisconsin
Home in 1870: Wisconsin, United States
Household Gender Age
George Stangel M 47y
Catherine Stangel F 35y
John Stangel M 13y
Jacob Stangel M 11y
George Stangel M 10y
Theresa Stangel F 7y
Catherine Stangel F 6y
Mary Stangel F 5y
per https://familysearch.org/pal:/MM9.1.1/MN9K-756
There is information you can search if you view this site

Findagrave link for George and Anna:

http://www.findagrave.com/cgi-bin/fg.cgi?page=gsr&GSln=S...;

Here is a link to a post I find which lists George A Stangel 1857-1941 m: Anna M Mleziva 1864-1938, and has information on the ancestors of George, including this which looks like it refers to George's grandfather:

George (Jiri) Stangel b: 6/4/1797 House #18 Straz, (Hochwartel) Bohemia d: 8/9/1872 St. Marys Cemetery
Tisch Mills, Wi m: 9/11/1818 Straz (Hochwartel), Bohemia to Maria Mleziva b: 1801 d: 1875 They had 11 children.

http://boards.ancestry.netscape.com/localities.northam.usa.s...

Here are a couple links to Stangel info I found which possibly ties in to your George Stangel.

Biographical sketch of John J Stangel
Commemorative biographical record of the counties of Brown, Kewaunee and Door, Wisconsin
Published 1895
p. 675-676

http://www.archive.org/stream/commemorativebiobkd00jhbe#page...

Stangel obits from Manitowoc county:

http://www.2manitowoc.com/ObitsSt.html

The ancestry of George (Jiri) Stangel 1795-1872 is taken from his toumbstone at cemetery #66 St. Mary Catholic Tisch Mills Manitowoc County, Wisconsin as well as a Stangel Family Tree Booklet published after the June 1976 Stangel family reunion at Stangelvill Wisconsin. The Family booklet lists George and his wife Mary Mlezvia coming to America in 1853. They had three sons, Joseph, John and Wenzil and a daughter Mary. George had two sisters, Mary and Barbara. Their parents were John 1756-1797 and Katharina Piwonka, both buried at The Catholic cemetery at the Domazlice church in Checzoslovakia. John's father was George born 1725 in Munich Bavaria and I have no information as to George's parents. Since this Family Tree Booklet was researched and verified through Many Stangel family records I believe in it's accuracy. If anyone wishes to contact me you can use my e-mail address.
lpgizz@yahoo.com