Have you tried some of the possibles below
Ulster Historical Foundation ie
www.ancestryireland.co.uk/ If you use their search system, you will get a report which starts with Birth records for Antrim and Down, then Marriage records for Antrim and Down , then Irish ancestors being researched (members interests), then Distribution of Surnames in Ulster ( 9 counties) in the mid-1800’s [ie Mathesons Database] , then Ulster Historical Foundation Research Files and so on. You can look up say the births and you will get first names and a year and a county, only then do you have to pay to view the entry to get any more detail. In the marriage section. I have learnt to match the dates shown for husband and spouse, thus reducing the possible marriage dates, nevertheless you then need to check it out. Members interests could contain your family being researched already.
The UHF has a sister website accessible ‘ History from Headstones’ here is a great first line of knowledge, you search by county and surname, again at some point you you have to pay to view the entry to get any more detail. It’s a little bit irritating when one knows they have published many in the series edited by Richard Clarke . anyway back to the UHF
Births SCANLON ELLEN 1830 Down
Births SCANLON ELLEN 1830 Down
Births PEDON JOHN 1837 Down
Civil Marriages PEDEN JOHN 1850 Antrim
Civil Marriages PEDAN JOHN 1853 Antrim
Civil Marriages PEDEN JOHN 1862 Down
Marriage Record PEDEN JOHN 1862 Down
Births SCANLON ELLEN 1865 Antrim
Births PADEN JOHN 1870 .
Civil Marriages PEDEN JOHN 1872 Antrim
Civil Marriages PEDEN JOHN 1873 Antrim
Marriage Record PADEN JOHN 1881 Banbridge
Civil Marriages PADEN JOHN 1881 Down
Civil Marriages PEDEN JOHN 1884 Antrim
Civil Marriages PEDEN JOHN RAINEY 1891 Antrim
Marriage Record PEDAN JOHN 1892 Banbridge
Civil Marriages PEDAN JOHN 1892 Down
Civil Marriages PEDEN JOHN 1893 Antrim
Civil Marriages PEDEN JOHN HUMPHREY 1904 Antrim
Civil Marriages PEDEN JOHN HUMPHREY 1904 Antrim
Births PEDAN JOHN 1897 Antrim
Births SCANLON ELLEN 1865 Antrim
Now over on
www.caora.net there are a couple of Scanlon messages
Over on the
www.proni.gov.uk/ulstercovenantsearch ie 1912
Paden Maggie 42 Wallaces Street Down: North Newtownards Town Hall etc
Paden Martha 39 Mill Street Down: North Newtownards Town Hall etc
Paden Betsy 39 High Street Down: North Newtownards Town Hall
Paden Robert 27 Movilla Street Down: North Newtownards Town Hall etc
Paden Samuel 39 Mill Street Down: North Newtownards Town Hall etc
Paden William J 97 Movilla Street Down: North Newtownards Town Hall etc
Paden James Movilla Street Down: North Newtownards Guild Hall and Town Hall etc
Paden Sam High Street Newtownards Down: North Newtownards Guild Hall and Town etc
Peden Lizzie Movilla Street Down: North Newtownards Guild Hall and Town Hall etc
Peden Annie 97 Movilla Street Down: North Newtownards Town Hall etc
There are Scanlon entries for Belfast Armagh and Donegal. I didnt try the leaseholders lists
Have you exhausted the Church of Jesus Christ of Latter-day Saints who sponsor the website
www.familysearch.com. There is much to learn as to how to use it to its maximum. You can search for just the records for a surname in Ireland. The missing search element for you is the place associated. Its library catalogue and CD collections are worth investigating. I have not found errors myself, but other genealogists say it isnt 100% accurate and one needs to check the information at source.[As one should do anyway]
Good luck in your quest Jim