Post-it Notes

Introduced to the public in 1980, the Post-it Note has become one of the Minnesota-based 3M Company’s most successful products.

Black and white photograph of Frances E. Andrews at a National Audubon Society dinner, 1954.

Frances E. Andrews at a National Audubon Society dinner

A president of the National Audubon Society (likely John H. Baker) presents a citation to Frances E. Andrews of Minneapolis for her contributions to conservation at the Society's annual dinner in New York City, November 20, 1954. From the Minneapolis Star Tribune portrait collection in the Minnesota Historical Society Library.

Black and white photograph of Frances E. Andrews (second from right) and others, ca. mid-1950s. Used with the permission of the Hunt Hill Audubon Society.

Frances E. Andrews (second from right)

Frances E. Andrews (second from right), ca. mid-1950s. Used with the permission of the Hunt Hill Audubon Society.

Black and white photograph of Frances E. Andrews (far right) and two other women, ca. mid-1950s.

Frances E. Andrews (far right), ca. mid-1950s

Frances E. Andrews (far right), ca. mid-1950s.

Black and white photograph of Frances E. Andrews, ca. mid-1950s.

Frances E. Andrews, ca. mid-1950s

Frances E. Andrews, ca. mid-1950s. Used with the permission of the Hunt Hill Audubon Society.

Black and white photograph of Frances E. Andrews, ca. 1907. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Frances E. Andrews, ca. 1907

Frances E. Andrews, ca. 1907. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Black and white photograph of Frances E. Andrews, 1903.

Frances E. Andrews’ high school graduation portrait

Frances E. Andrews’ high school graduation portrait, Lee Bras, 1903. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Black and white photograph of Frances E. Andrews, ca. 1900.

Frances Andrews

Frances E. Andrews, ca. 1900. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Black and white photograph of Frances E. Andrews, ca. 1907.

Frances E. Andrews

Frances E. Andrews, ca. 1907. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Black and white photograph of a Duluth, Missabe and Iron Range train on railroad bridge west of Two Harbors, ca. 1940.

Duluth, Missabe and Iron Range train

On a railroad bridge west of Two Harbors, a DM&IR freight consisting entirely of ore cars, or jennies, is seen being pulled by a powerful Yellowstone type steam locomotive, ca. 1940. The locomotive behind it was the most recent locomotive acquisition at the time of the photo.

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