I have just had another possible idea!
Do either of you have Pasqualino's baptism entry? Or do you know where he may have been baptised? Catholics are very good at cross referencing.
I have just recalled that when I found my own Dad's baptism at an RC Church, when at the archives, in the left hand margin was a reference to his marriage to my Mother at another RC Church. They had actually married the first time in a registry office but the local priest was not happy about this and got them to go through a second ceremony. Dad's baptism entry gave no mention of the registry office marriage - only the RC marriage entry details.
If I recall rightly, didn't Pasqualino's brothers have references to their future marriages in their baptism records which I found too?
If I can find Pasqualino's baptism (hopefully RC for this purpose) this may have his first marriage referenced if he was the one who married Marieta. At that point in time he would have had nothing to hide in such a case. So it might be possible that when/if he was the one who married Marieta the priest would have wanted to know where he had been baptised. Then possibly this information may have been sent to that Church for the priest to cross reference marriage in Pasqualino's baptism entry.
This may have been why he not marry Mary Elizabeth in a RC Church perhaps - because of sticky questions which may have been asked by any priest.
Perhaps I could also check the marriage entry too just in case Pasqualino's baptism may also have been cross referenced on there.
I will be able to check the next time I can get to the archives - as I have mentioned I am doing a run of nightshifts at the moment - but expect this archive trip could be fitted in at some point over next few weeks.
It might be helpful if you might know his date of birth so I can start searching from that point. I really hope he was RC baptised - if he was we may be able to find out if he was Marieta's husband.