For that reason, a separate nomination was prepared and submitted, and the hospital was listed on the National Register of Historic Places on June 1, 2011.

As originally built, the main entrance was a two-story brick and stone portico, with the doors on the porch on the second story.

The Minneapolis Journal commented on the hospital's “sun rooms, silent signal systems, spacious corridors, pleasing decorations and light and air in abundance.”[1]: 17 Dunwoody owned the building and the land.

When he died in 1914, he left the hospital with a $100,000 endowment and transferred ownership of the property to Westminster Presbyterian Church.

When this section was built, the main entrance of the hospital was relocated to a recessed doorway on the first story of the west facade.

The pediatric unit had been located on the south side of the second floor of the Dunwoody building, but it often overflowed into other areas.

At this time, there were four pediatricians working in the hospital: Dr. Julius Sedgwick, Dr. Nate Pearce, Dr. Rood Taylor, and Dr. Frederick C. Rodda.

The Children's Pavilion was announced at a board of trustees' meeting in September 1919, when Janney provided a donation estimated between $200,000 and $330,000.

Victor Anderson, the business manager, had proposed a 200- to 250-bed facility in 1927, but the projected construction costs were higher than expected.

A study of the potential use of the new space, presented in October 1930, revealed that Minneapolis had too many hospital beds after a construction boom in the 1920s.

Magney and Tusler reworked some earlier plans to meet the latest standards in hospital architecture, while retaining a harmonious appearance on the outside by using brick similar to the Dunwoody and Janney wings and by using similar size and massing to the nearby apartment buildings.

[1]: 24  The first floor of the addition was devoted to administrative and staff functions, and also contained the kitchen and dining rooms for the entire hospital.

The Abbott campus was too small to continue supporting its level of services effectively, and a fairly large expansion would have been necessary.

[5] The Ebenezer Society agreed in 1978 to buy the main Abbott building and operate it as a nursing home, as well as providing other programs for the elderly.