Edward Conlon -weaver of Tullylish-circa 1845-seeking info please

[Alan of Kaslo]

Found:

Death cert for Mary Burns. Spinster daughter of Hugh Burns that was present at his death. Also found under Lurgan.

Died March 18th 1896 age 40:
https://civilrecords.irishgenealogy.ie/churchrecords/images/deaths_returns/deaths_1896/05910/4677618.pdf

She never made the 1901 census:
http://www.census.nationalarchives.ie/pages/1901/Down/Tullylish/Bleary/1243923/

There was a Mary Burns listed as a witness at the wedding of Sarah Burns and Arthur Conlon:
https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1877/11146/8082672.pdf

I had been wondering if Mary and Sarah were siblings but had no real proof. There were no other Hugh Burns of Bleary besides the one that died in 1858 and the father & son discussed here. I can't see Sarah fitting into a different Hugh Burn weaver of Bleary family.

Found Mary's baptism info for 09 Sep 1854:
https://registers.nli.ie//registers/vtls000633255#page/45/mode/1up

"Mary of Hugh Byrne and Betty McConville. Sponsers: Robert & Mary McConville"

Only kids not listed are Sarah and Hannah

Hugh   BYRNE   .   Tullylish   married Elizabeth (Betty) McConvill 18 Jan 1836 at a Tullylish Catholic Church ; father of Hugh bpt. 28 Sep 1843 & Elizabeth bpt. 18 Jun 1852 & Mary bpt. 9 Oct 1854 at a Tullylish Catholic Church

I haven't yet found a marriage or death for Elizabeth above.

Hanna died a spinster at age 61 in 1907 so was born about 1846
Sarah died at Drumnascamph 1919 at age 74 born about 1845