Editing David Dunlap Observatory (section)

===Dunlap involvement===
[[File:David Dunlap.jpg|thumb|240px|[[David Alexander Dunlap]], c. 1920]]

Knowing that similar funding collaborations had been very successful in the United States, Chant turned to the local business community.{{sfn|Russell|1999}} To promote his plan, Chant often concluded public lectures with a pitch to the audience for a larger observatory for Toronto; this included a 1921 talk on Comet [[7P/Pons-Winnecke]], which had recently been visible in Canada. One of the attendees was [[Hollinger Mines]] co-founder, lawyer [[David Alexander Dunlap|David Dunlap]] (1863–1924), who expressed an interest in Chant's efforts to build a large observatory. However, before making any financial commitment, Dunlap died in October 1924 at age 61 ''(also see {{MoMP|70207|70207 Davidunlap}})''. In late 1926, Chant wrote to his widow, Jessie Dunlap, with the idea of erecting an observatory as a monument to her husband. Mrs. Dunlap promised to "keep it in [her] heart for consideration, for it appeals to me tremendously."{{sfn|Russell|1999}}

By this point the chosen site was within the rapidly-growing city, and not suitable for astronomy due to both light pollution. A site much further from the city was needed, to ensure it too would not be crowded out, as well as to reduce the impact of moisture-filled air and fog from Lake Ontario. The first site studied was outside [[Aurora, Ontario]], but it was decided that it was too far from the university for casual travel. Another site near [[Hogg's Hollow]] was also studied, but was not easily accessible. The eventual site was selected while Chant was studying [[topographical map]]s with fellow astronomer [[Reynold K. Young]], finding a suitable spot north of the city. The site was a short distance east of [[Yonge Street]], and the [[Ontario Northland Railway|Canadian Northern Ontario Railway]] line ran along the western end of the site. It was on Lot 42 on what was Alexander Marsh's farm and orchard.<ref>{{cite web | url=https://www.richmondhill.ca/en/find-or-learn-about/ddo-history.aspx | title=RHDDO History | date=3 May 2022 }}</ref> In 1930, when Chant took Dunlap to see the site for the first time, she stated "this is the place!" and authorized its purchase for {{CA$|28000|link=yes}} ({{Inflation|CA|28000|1930|fmt=eq|r=-3}}).{{sfn|Russell|1999}}