Watching the hokey-pokey man, First Avenue.

The Homestead in the Bend -- the original dwelling with the Mulberry Grove.

The Homestead in the Bend -- the original dwelling with the Mulberry Grove.

The "Slide" that was the Children's only Playground once.

The "Slide" that was the Children's only Playground once.

City Lodging House, 23rd Street & First Avenue -- lodgers taking compulsary bath, "Well-nourished" fat.

The First Christmas Tree in Gotham Court.

[Woman street vendor with customer.]

The First Christmas Tree in Gotham Court.

Battle Row Model Tenement, City & Suburban Homes Co.'s new tenements on First Ave. 1900.

[The Vanderbilt House on Fifth Avenue.]

Vacation Playground, 66th Street and 1st Avenue, Manhattan. August 26th 1902.

Vacation playground at 66th Street and 1st Avenue, Manhattan. August 26th 1902.

The First Patriotic Election in The Beach Street Industrial School - parlor in John Ericsson's old house.

City Lodging House, 23rd Street & First Avenue -- lodgers taking compulsary bath, "Well-nourished" fat.

City Lodging House, 23rd Street & First Avenue -- lodgers taking compulsary bath, "Well-nourished" fat.

The First Patriotic Election in The Beach Street Industrial School - parlor in John Ericsson's old house.

The "Slide" that was the Children's only Playground once.

[The Vanderbilt House on Fifth Avenue.]

[Street peddlers.]