Not well known in the U.S., Marcel was one of the foremost Christian Humanists of 20th-century Europe. This article, in particular, influenced Russell Kirk. So much so that Kirk hoped to co-author a book with Marcel.
Source: Gabriel Marcel, “The Concept of Spiritual Heritage,” CONFLUENCE 2 (September 1953): 3-15.
Stormfields 
Brad,
These are awesome finds, and a great Christmas present! 🙂 Thank you for posting them!
Yay! Thanks, Bill. Glad to share the wealth.