Hi there Tom I too have a Judge from Westmeath, though I do not have enough info to be definitive into where he fits in the Judges of Westmeath.
There were both Catholic and Protestant Judges in the Athlone area. Mine were Protestant.
In your message you say St Marys, is that Sy Marys of Athlone?
Records of St Marys Athlone
Some years ago I made some notes, in the Church of Ireland Library in Dublin regarding Judges from the Athlone area. Mine are from the protestant line.
Looking back through the notes I have, I have got a baptism record for a
Sally Judge born 29 April 1822, baptised May5th 1822 parents Richard and Elizabeth.
John, son of Richard and Elizabeth born Mar20 bapt Mar28 1824 (This is most likely mine)
James born july28 bapt july30 1826 son of Richard and Elizabeth.
Thomas born Apr15 bapt May2nd 1830 son of Richard and Elizabeth
Richard son of Richard and Elizabeth born june15th
Eliza bapt. Oct1 1837 her birth Sept6, parents Richard and Elizabeth.
I have a birth of Richard Judge, Dec2 1797, bap Dec nd. 1797, Son of James and Jane Judge of Bonnavalley
A burial of a Richard Judge, an inmate of the workhouse, died 23 Dec, buried 24th 1847
My judge , John on his marriage record has his father as Richard, and his age as 28 which makes his birth as 1828, though the record is 1824.
These are the only two records I have so I have only included this in my tree in the absence of additional records but with a caution note attached.
I hope this may be of some help to you.
Geoff
