Filippo Mazzei (1730–1816), an Italian physician, philosopher, diplomat, promoter of liberty and author, was a ardent supporter of the American Revolution, and close friend of Thomas Jefferson.
Foundation librarian Jack Robertson stated, "The collection compiled by Sister Margherita includes not only facsimiles of all of Mazzei's correspondence, but relatively obscure publications on the role of Italians in American history.
[12] Sister Marchione claimed pressure from the international Jewish community is a major contributing factor to the Vatican's failure to beatify Pius XII.
Throughout her life she launched numerous appeals to Yad Vashem to change its unflattering characterization of Pius XII and declare the wartime Pope a "Righteous Gentile".
Marchione claimed she has interviewed scores of elderly Italian Jews who expressed gratitude to the Pope for the fact that they were hidden in Vatican institutions during that period.
[12] Marchione contended it is inconceivable that the heads of so many convents and monasteries would have sheltered Jews unless they were acting at the Pope's direction, citing a comment by Father David Maria Jaeger, an Israeli-born Jewish convert to Roman Catholicism and a prelate auditor of the Roman Rota,[14] who argued: "Anyone who has any acquaintance with the law and culture of the Catholic Church at that time would understand [that] those things could not have taken place without specific orders of the Pope, and those orders could not have been in written form.