Michael,
A word of advice about the spelling of the surname you are researching. I advise against getting too focused on just Lytle. It’s extremely unlikely that your family only ever used the one spelling. The idea of a single or correct spelling for a surname or a place name is very much a recent phenomenon designed to meet the needs of modern officialdom. Before that, especially in Ireland, there was no consistency. Names were spelled phonetically and each variation was down to the whim of the particular person recording the information. You will often see the spelling change as the records go back. This rarely indicates a deliberate decision to alter the name, nor even a mistake. Not everyone was literate, but even when they were, exact spelling simply wasn’t something they bothered about. Expect the spelling to vary. It was the norm.
The Lytle family you have identified in Portadown Urban area in 1911 were Presbyterian. Is that the denomination you are looking for? By the way, making my point for me, that family spelled their surname Little in the 1901 census:
http://www.census.nationalarchives.ie/pages/1901/Armagh/Killymann/Mulle…
Looking at the 1911 census, I see 238 people named Lytle/Lyttle/Little in Co. Armagh. The denominations are a complete mix ie Church of Ireland, RC, Presbyterian, Baptist, Unitarian, one “Church of the first born Heb. 12 & 23” plus some Methodists. As I mentioned in an earlier post, if looking for Methodists, include Church of Ireland too, as many Methodists were still using it for baptisms and marriages until the 1870s.
If looking for Methodists around Portadown there are 8 Meeting Houses to choose from. Three have had their records copied and are in PRONI in Belfast. The rest are still held by the local Minister ("in local custody" on my list) and are not on-line anywhere. You would need to contact each Minister to check them. In most cases you will notice the baptisms start earlier than marriages, and with some there are no marriages at all. That was generally because they continued to marry in the Church of Ireland.
M. Derryall
Baptisms, 1830-.
[At Thomas Street Church, Portadown]
In local custody
M. Derryanvil
Baptisms, 1830-; marriages 1952.
[At Thomas Street Church, Portadown]
In local custody
M. Edenderry
Baptisms, 1830-.
[At Thomas Street Church, Portadown]
In local custody
M. Mahon
Baptisms, 1830-; marriages 1938-.
[At Thomas Street Church, Portadown]
In local custody
M. Portadown (Thomas Street) [Wesleyan Methodists]
Baptisms, 1830-1904; marriages, 1863-1903. MIC1E/8
M. Portadown (Scotch Street)
Baptisms, 1830-; marriages, 1863-.
In local custody
M. Portadown [Primitive Methodists]
Baptisms, 1847-1901. MIC1E/8
M. Portadown [Primitive Wesleyan Methodists]
Baptisms, 1871-9. [Includes baptisms in the parishes
of Drumcree, Seagoe, Kilmore and Shankill and in
Tandragee and Mullavilly] MIC1E/8