Editing Hartsdale, New York (section)

===20th Century===
{{Unsourced section|date=May 2025}}
In 1904, the German-Jewish banker [[Felix M. Warburg]] (1871–1937) purchased large tracts of land to build his {{convert|500|acre|km2|adj=on}} "Woodlands" estate in Hartsdale.

In 1932, [[Henry Jacques Gaisman]], inventor and founder of the [[Gillette (brand)|Gillette]] [[safety razor]] blade, purchased {{convert|136|acre|km2}} of land along Ridge Road which he should in 1952 to the [[Roman Catholic Archdiocese of New York|New York Archdiocese]] for $600,000. In 1999 the estate was sold to the Town of [[Greenburgh, New York|Greenburgh]] which reopened it as the Hart's Brook Nature Preserve.

In 1936 [[Greek American|Greek immigrant]] and ice cream salesman [[Tom Carvel]] opened the world's first [[Carvel Ice Cream|Carvel]] ice cream store in Hartsdale.