1940s

Madonna with nimbus behind presenting baby Jesus to three wise men or saints.

Depicts two female students sitting atop a wall around a circular pool with central fountain. Possible proposal study for "Fountain of the Five Colleges".

Sketches of two semicircles with figures and a sculpture and lectern, possibly a fountain, at the center.

The artist’s daughter in profile in a short-sleeved dress, with braids tied at the back of her head with ribbon.

A woman in a dress with her hands together in front of her, and a large cross behind her. She is looking down at a helmet and sword, all on a base. Possibly for a war memorial.

Study of three figures clustered together.

Study of an intersection. Concept for campus entry.

Study of the profile of a man with glasses on in lab coat. Could be a study for Ernest N. Lindstrom memorial bas relief or Rev. Sam Nichols.

Detailed sketch of a boy in profile.

Sketch of Charlotte resting in bed, head in profile on pillow, with covers pulled over her arm.

A man lying underneath of a tree. The image is of Petersen’s friend, J. C. Cunningham, taking a nap while they were on a canoe trip. A rare medium for Petersen.

Two men working at unloading grain or hay into farm machinery from wagons which have horses hitched to them. Barn and windmill center right, corn in background left center. Fence across lower right and center section.

Long range perspective sketch of a farmer and his wife looking over their land. Cattle in fields and fence along road. Barn and windmill in background.

Elevation sketches of an area on the Iowa State College campus, with trees and distances marked.

Sketches of a sculpture of a girl playing with a dog.

Three sketches of two figures on bases. In all of them, a man is helping a young girl with a sick pet. There is also a small sketch of a plant at the center of the three groupings.

Four sketches of Christmas scenes for the cover of "Julegranen" magazine.

Central smokestack flanked by metal and wood buildings. Pigs in the foreground.

Virgin Mary holding a nude infant Jesus with a halo around them. Three bearded men in front are kneeling and looking at them.

Pocket notebook sketches of the artist’s daughter, Mary.

Robed nun in habit embracing child.

Image of a rural two-story home in farm fields.

A roundel of a farmer in front of a hog feeder caring a suspended sack between two poles. Two women in foreground - one picking corn and the other haling a jug. Five pigs are at the farmer’s feet, possibly of the Chester White variety or a crossbred.

Bust of young boy from waist up.

Charlotte Petersen seated in upper left, Christian Petersen sculpting on large block lower right. Possibly a Mary figure in lower left.

Charlotte Petersen seated in upper left, possibly speaking into microphone. Christian Petersen and Mary Petersen in lower right around a lump of modeling clay.

Young female with short hair; slate base.

Square unglazed ceramic tile, natural beige color. Top has design inscribed of nude male, squatting, working on a tall ceramic pot.