The wiki where this link leads doesn’t have a citation for this $137 to Washington. Do you have something?
Junípero Serra - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Junípero_Serra
Wikipedia
Blessed Junípero Serra at age 61, ten years before his death. .... collected amounted to roughly $137, but the money was sent to General George Washington.
Serra died in 1784, ten years before, the war hadn’t started. Just an example of the unreliability of wiki. And the paragraph, while it relates the story, has no citation.