Dave,
I found 3 census records for your ANDREW and MARY YUHAS, who were residing in Reading, Livingston County, Illinois in 1910, 1920 & 1930. Ages for couple and their children vary by a couple of years on each census; that's commonplace. Birth place on 1930 Census for ANDREW & MARY says Czechoslovakia. Marriage date on 1910 Census is about 1892, as they were married 18 years by then. On the 1910 Census, MARY YUHAS had a total of 8 children, but only 7 survived. You had seven named on your posting. There is also given arrival dates in the USA for both ANDREW & MARY YUHAS. Also, Naturalization dates. Again, they vary on both census records, but maybe you can find them in the immigration records or naturalization records. If you can find a full copy of the latter, it will give you birth dates and places, where they lived at the time and sometimes the names and birth dates of the children.
May 3, 1910 Census:
ANDREW YUHAS, Head, age 40, Married 18 years (Married abt. 1892), b. Austria, Spoke Slovenian, Cannot read or write, Occupation: Coal Miner.
MARY YUHAS, Wife, age 35, Married 18 years (Married abt. 1892), Had 8 children, 7 children living, b. Austria, Spoke Slovenian.
SUSIE YUHAS, Daughter, age 12, b. Illinois.
VERA YUHAS, Daughter, age 10, b. Illinois.
EMMA YUHAS, Daughter, age 8, b. Illinois.
JOHN YUHAS, Son, age 5, b. Illinois.
February 2, 1920 Census:
ANDREW YUHAS, Head, Owns Mortgage-Free House, Age 52, Married, b. Austria, Spoke Slavok, Parents b. Austria, Spoke Slovak, Immigrated to USA in 1880, Naturalized in 1885 or 1895, Occupation: None.
MARY YUHAS, Wife, Age 46, Married, b. Austria, Spoke Slovak, Parents b. Austria, Spoke Slovak, Immigrated to the USA in 1891, Naturalized (no date given), Occupation: None.
EMMA YUHAS, Daughter, Age 19, Single, b. Illinois, Parents b. Austria, Spoke Slovak, Occupation: Laborer - Automobile Works.
JOHN YUHAS, Son, Age 17, Single, b. Illinois, Occupation: Laborer-Stamping Works.
ANDREW YUHAS, Son, Age 12, b. Illinois.
Mikel YUHAS, Son, Age 9, b. Illinois.
April 12 1930 Census:
ANDREW UHAS, Head, Owns Home, Age 65, Married, Age at First Marriage - 28, b. Czechoslovakia, Spoke Slovak, Parents b. Czechoslovakia, Spoke Slovak, Immigrated to USA in 1890, Naturalized (No date given), Occupation: Laborer in a Greenhouse.
MARY UHAS, Wife, Age 55, Married, Age at First Marriage - 28, b. Czechoslovakia, Spoke Slovak, Parents b. Czechoslovakia, Spoke Slovak, Occupation: None.
JOHN UHAS, Son, Age 25, Single, b. Illinois, Occupation: Works in a Tile Factory.
ANDY UHAS, Son, Age 22, Single, b. Illinois, Occupation: Works in a Green House.
MIKE UHAS, Son, Age 19, Single, b. Illinois, Occupation: Works in a Green House.
Dave, your posting caught my attention, as the family line I'm working on right now is MICHAEL "MIKE" STEVEN YUHAS, b. May 20, 1874 in Austria (spoke Slovak). Family lived in Dunmore, Lackawanna County, PA. He was a coal miner there.
Married SUSAN "SUZIE" MISO, also born in Austria and spoke Slovak. Children were: MICHAEL "MIKE" CYRIL YUHAS, MARY YUHAS, PAULINE YUHAS, JOHN YUHAS, ANDREW BERNARD YUHAS, IRENE YUHAS & VERONICA "VERNA" YUHAS. Several of the children's names are similar to your line of ANDREW's. Maybe there is a connection? ANDREW YUHAS could be a possible brother of MICHAEL "MIKE" STEVEN YUHAS? MICHAEL "MIKE" STEVEN YUHAS also had a brother, JOSEPH YUHAS.