Do you mean St Mary's in Mckeesport which is about a mile from St Joseph's?It is my understanding Mary McCloskey was the head of the Cemetery Board at St Mary's.
My center point of reseach right now are the two student cards from Mount St Mary's College at Emmistburg.One for the Cardinal and the other for Rev John McCloskey the Vice President of Mount St Mary's College during the Civil War.
The next thing I have are pictures of the McCloskey gravesite at St Joseph's at McKeesport.
I believe there is a relative of Pope Pius IX in this gravesite.If I can prove that, then I think I can get the Vatican to help.
Just on a side note, Mount St Marys at Emmitsburg was started by Bishop DuBoise with the help of General Lafayette. At least that's what the college wants to say.It's not too much later that Cardinal John McCloksey attends Prep School in 1821 at Mount St Marys at 12 years old.General Lafayette would still be alive at that time and would be alive at least 15 more years.
Dr Felix Brunot was the foster brother of General Lafayette and his family is buried at Allegheny Cemetery in Pittsburgh within 100 ft of most of the founding fathers of Pittsburgh such as O'Hara, Neville, Morgan, Craig, and so on.
I have lots of records on Dr Felix Brunot and Presley Neville who was General Lafayette's aid.