I have Thomas Falla from the Family Search Web Site when I was looking at details for Selby Falla (his son). Thomas is down on Family Search as Disc Number 69 and Pin Number 405730 (I don't know where I would get this Disc information from?). This is how I have the connection of Thomas to Selby.
I have trouble with Selby too!!
Selby is down on some search sites as being born in Belford (which is where most of the family are) but on most sites he's down as being born in 1783 at Kirknewton, Northumberland and Died 15th Jan 1863 Belford Northumberland.
Looking at
www.familysearch.org & trying to retrace your steps, it appears as if you got the information from a Pedigree Resource File. I am not very familiar with the ins and outs of the LDS system, but the kind of information you have for Thomas Falla comes from family trees submitted by individuals. They are as good as the researcher concerned and the quality of sources the researcher has used. I understand from other people that some include detailed notes and source references and others....don't.
In this case the submitter has allowed their their name and address to be publicly available, though they may have moved, of course, in the meantime. You can also purchase CDs with the family tree you are interested in - you will need the CD reference number and presumably the other reference also. I haven't ever done this but it looks as if you just follow the links provided.
There is a link which says "Order Pedigree Resource File CD-ROMS" which takes you to the on-line LDS store. Choose the "Home and Family" link and then "family history".
Matilda