Positions on the Tuesday, April 2, ballot include a St. Croix County judgeship, a seat on the District 3 Court of Appeals, Wisconsin superintendent of public instruction, and a seat on the state Supreme Court.

Incumbent Ed Vlack, River Falls, is the only candidate for St. Croix County Circuit Court judge, Branch 2; and an Eau Claire County judge is the only candidate for a seat on the appeals court that handles cases from Pierce and St. Croix counties.

Incumbent Tony Evers and Republican Assemblyman Don Pridemore are candidates for state superintendent. Marquette professor and attorney Ed Fallone is challenging incumbent Pat Roggensack for a seat on the State Supreme Court.

Here is a rundown on the candidates:

St. Croix County

Vlack was first elected a St. Croix County judge in 2001 and was reelected in 2007. Before being elected judge, he was in private practice, first in Hudson and then in River Falls, for over 25 years.

He was the St. Croix County Family Court commissioner from 1989 to 2001 and the Pierce County Family Court commissioner from 1985 to 2001.

Vlack helped create the St. Croix County Drug Court in 2006. He also presides over St. Croix County Juvenile Treatment Court, which he helped create in 2009.

Vlack is a dean on the Wisconsin Judicial College and one of its instructors at its annual weeklong session held each August for Wisconsin judges. He has also instructed at seminars on juvenile law and is a member of a committee that is creating online training in juvenile law for judges.

Court of Appeals

Eau Claire County Judge Lisa Stark is seeking election to Wisconsin's District 3 Court of Appeals.

In November incumbent Gregory Peterson, who was reelected two years ago in an uncontested election, announced he would be retiring after more than 13 years as appeals court judge. Peterson, 66, who still had most of his 6-year term remaining, said he wanted to retire he is still in good health and able to pursue other interests.

Stark was admitted to the practice of law in Wisconsin June 1982. She practiced civil litigation law as a partner in an Eau Claire law firm from 1983 to 2000.

She was elected to Eau County judge in 2000 and reelected in 2006 and 2012.

Stark was appointed dean of the Wisconsin Judicial College in September 2010 and appointed to two three-year terms as associate dean of the Judicial College in 2005 and 2008.

Stark is currently a presiding judge for the Eau Claire County Drug Court, chairperson of the Alternative Treatment Court Collaborating Council for Eau Claire County, president of the county's Restorative Justice Program and a member of the State Courts Effective Justice Strategies Subcommittee.

Supreme Court

Incumbent Justice Pat Roggensack is being challenged by Ed Fallone for one of seven seats on the state's highest court. Supreme Court justices are elected to 10-year terms.

Roggensack was first elected to the Supreme Court in 2003. She holds a degree in biology from Drake University and worked in research before entering the University of Wisconsin Law School, where she graduated with honors in 1980.

Roggensack practiced law for 16 years before being elected to the Court of Appeals in 1996 and re-elected in 2002.

She is a frequent guest lecturer at the University of Wisconsin Law School and various organizations both in Wisconsin and nationally. Roggensack is past-president of the Western District Bar Association.

Her website is roggensack forjustice.com.

Fallone has been a professor at Marquette University Law School for two decades, focusing on constitutional law, immigration law, securities regulation and corporate law.

He also practices with a private law firm and has practiced business and corporate law for more than 25 years.

Fallone is founding president of Centro Legal, a service that helps working families get access to legal counsel. He is also past-president of the Latino Community center focusing on programs to keep kids in school and out of gangs.

His website is fallonefor justice.com.

State superintendent

Tony Evers was elected Wisconsin superintendent of public instruction in April 2009. He has more than 36 years of public education experience.

A graduate of Plymouth High School, he earned three degrees from UW-Madison: a bachelor's degree in 1973, a master's degree in 1976 and a doctorate in 1986.

Evers has worked as a teacher, principal, superintendent, regional administrator, deputy state superintendent and state superintendent. He has served in schools and lived in communities across Wisconsin, from Tomah to Oakfield, Verona to Oshkosh.

His campaign website is www.tonyevers.com.

Don Pridemore, Milwaukee, is a former electronics research technician, electronics design engineer and senior electronics project engineer. He has represented District 99 in the Wisconsin Assembly since 2004.

Since being elected to the Legislature, Pridemore has served on the Education and Education Reform committees. He is currently chairman of the Urban Education Committee.

A 1964 graduate of Milwaukee Lutheran High School, Pridemore earned a bachelor's degree from Marquette University in 1977. A Vietnam Era veteran; he served in the U.S. Air Force 1965-69.

His campaign website is www.pridemoreforwi.com.