TILLINs in the Births Index 1837-1915

I have been making a start on the data for my One Name Study.

I've now transcribed properly all the TILLINs in the birth indices from 1837 to 1915 (transcribed by FreeBMD but accessed via Ancestry.co.uk). I've also transcribed any TILLINGs and TILLENs if they appeared on the same page as I think they are common misspellings or possible derivatives. I will need to come back to this record set at some point to make sure I've transcribed all the people who have a mother with TILLIN as their maiden name.

It's been quite satisfying to realise that I already had records of most of them - maybe from a census - but it feels good to have a proper list.

The next record set I'm going to tackle is the Births Indices for 1916-2005. These will take longer due to the maiden names.

I am adding each record to my Family Historian tree and allocating a Custom ID to each individual so that I can hopefully tie up individuals over time. Do you have a Custom ID method? Where do you keep your records? How do you collect data from Record Sets?