Forerunner to the State of Israel Bonds Pledge Drive?

There's a new children's book out and it features some interesting historical facts intertwined with the story.

"Myths and stories have gathered around Salomon, a slender Jewish immigrant from Poland. The stories have help up because they are good, if not entirely true." She goes onto add that while the book is "based primarily" on authoritative historical sources, "Most of my dialogue and dramatic scenes… are my contribution to engage young readers in the story." So where does the history begin and the dramatic reenactment end? Very hard to tell. Check out the scene in which Rubin tells us about the relationship between Robert Morris, a Philadelphia businessman whom George Washington appointed the minister of finance during the War, and Salomon.

The story goes that on Yom Kippur, the Day of Atonement, Haym was attending services at [Temple] Mikveh Israel. A messenger came in and asked for him. "Robert Morris sent me," the messenger said to Haym. "He needs you to sell two bills of exchange for twenty thousand dollars."Members of the congregation gasped. "For shame!" They were shocked to hear talk about money on the holiest day of the year for Jews. Haym, however, knew that at no other time would he have so many people gathered at once. He asked the rabbi for permission to speak. "Let us all help General Washington," he said. Within a few minutes, Haym raised all the necessary money, including three thousand dollars of his own.

Fact ... or fiction?

Which came first -- this scene or the Israel Bonds Pledge Drive every Yom Kippur?