Always best to check what's available before going to archives. Here's the listing for Ballenon R.P. Church[
R.P. Ballenon (formerly known as Tyrone’s Ditches) [sic Ballenan] [see also Ballylane]
Baptisms, 1860-77; marriages, 18511934; deaths, 1850-68, with three references, 1880-95; register of admissions, 1849-67; register of departures, 1849-68; session minutes, 1820-67 with list of members, 1820-21; session and committee minutes, 18971905; diary entries, 1850-67; stipend list, 1853; stipend accounts listing names, 1854-1913; collection accounts, 186065; session minutes, accounts and correspondence, 1819-83; accounts, 1954-85; Sunday School roll book, 1928-40.
https://www.nidirect.gov.uk/sites/default/files/publications/PRONI-Guide-to-Church-Records.pdf