In 1976, tuckpointer Donald O'Reilley caulked his name and is wife's initials on the cross that sits on top of the Loyola Madonna Della Strada Chapel in Chicago.
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He wrote the name "Don" and the initials "CM" for his sweetheart, Carole Martin.
Chopper7HD spotted his work from above last week.
O'Reilley also inserted a bicentennial quarter into some more caulk near the initials.
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All of it is still there, withstanding many years of harsh Chicago weather and the test of time.
Donald and Carole have since died. Their son, Michael O'Reilley, is a media manager for ABC7.