Black and white photograph of Medtronic Founder Earl Bakken and Medtronic CEO Winston Wallin with an early pacemaker model, 1986. Photographed by Jeffrey Grosscup.

Medtronic Founder Earl Bakken and Winston Wallin with Early Pacemaker

Medtronic Founder Earl Bakken and Medtronic CEO Winston Wallin with an early pacemaker model, 1986. Photographed by Jeffrey Grosscup.

Color image of Medtronic’s headquarters in Fridley. Photographed on September 7, 2012.

Medtronic headquarters, Fridley

Medtronic’s headquarters in Fridley. Photographed on September 7, 2012.

Color image of Minnesota state senator Mee Moua speaks at a rally on October 30, 2008, in support of Barack Obama, Al Franken, and other Democratic candidates.

Mee Moua

Minnesota state senator Mee Moua speaks at a rally on October 30, 2008, in support of Barack Obama, Al Franken, and other Democratic candidates.

Black and white photograph of a progressives meeting, 1937.

Meeting of progressives to discuss third-party options

Progressives meet to decide whether they should form a national third party based on Farmer-Labor and similar liberal groups, 1937.

Color image of a meeting of the Hmong Health Care Professionals Coalition, 2013.

Meeting of the Hmong Health Care Professionals Coalition

Members of the Hmong Health Care Professionals Coalition (HHCPC) meet at Big Brothers Big Sisters, an HHCPC member host site, in St. Paul in 2013.

Black and white photograph of Melvin J. Maas, 1925.

Melvin J. Maas

Melvin J. Maas, 1925.

Black and white photograph of Melvin J. Maas with daughter Patricia and wife Katherine, 1952.

Melvin J. Maas with daughter Patricia and wife Katherine

Melvin J. Maas with daughter Patricia and wife Katherine, 1952.

Black and white photograph of Melvin Maas, 1931.

Melvin Maas

Melvin Maas, 1931.

Black and white photograph of Melvin Maas from St. Paul Central High School yearbook, 1916.

Melvin Maas high school portrait

Portrait of Melvin Maas from the 1916 edition of St. Paul Central High School's yearbook The Senior Annual.

Black and white photograph of Maas in flight suit, c.1929.

Melvin Maas in flight suit

Maas in flight suit, c.1929.

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