Hello Eagleye, Well, I don't know how successful my friend and I have been but here goes.
The church is currently undergoing some improvements and has scaffolding on it. We asked a chap up a ladder where the graveyard was and he pointed us to the back of the Catholic Social Club. Here we found a very small graveyard with a few graves in it. A couple were tending one of the graves and when we asked about Halpins, they said there were some there! They also said a local man called David Coalfield (could be spelt several ways) had written all the names of the graves down about twelve months ago. I have his phone number which might be a start for you, but let me have your email address as it's probably not fair to publish it here without his consent.
Right, this is what we found -
George Halpin Died February 18 1948 Aged 77
Mary Elizabeth, Wife of Above Died December 2 1965 Aged 90
John Laurence, Son of Above, Died June 22 1944 Aged 39
Andrew. Son of Above, September 6 1972 Aged 69
All these are interred in the same grave.
Also -
Sweet Jesus have mercy on the soul of a dear husband and father
John Halpin
Died 26 December 1961 Aged 66
William Halpin husband of Mary Halpin Died May 15 1929 Aged 63
Also the above named Mary Halpin Died August 24 1934 Aged 67
There is another graveyard about half a mile away with a section for Catholic burials. The only name we could find was:
John Gallagher Died 18 October 1982 Aged 60
Anne Veronica Died 9 September 1994 Aged 74
The is a priest who covers several churches, perhaps that's why you had no reply.
Some of the graves are unmarked in the old yard, so it might be worth seeing if David has access to the burial records - he must be interested to write them all down in the first place.
I guess we have had partial success.
Good luck with your search
Linda and Charlotte