William George PEARSE How do I prove it's the correct marriage and baptism?

[amondg]

Re GRO Index
2 years either way from the year entered equals a five year search each time.

You can also use freebmd to narrow down prospects before switching to the GRO.

[nicdigby]

Re GRO Index
2 years either way from the year entered equals a five year search each time.

You can also use freebmd to narrow down prospects before switching to the GRO.

Thank you for this, so if I was searching for a child’s birth that I thought was in the mid 1850s, for example,  would I start on selecting the year 1852 with +/- 2 years (to cover 1850-1854) and then go up to 1857 (to cover 1855-1859)?

If so I’ve been doing it wrong, I was doing 1850 male and female, then 1852 male and female etc.

[Neale1961]

Thank you for this, so if I was searching for a child’s birth that I thought was in the mid 1850s, for example,  would I start on selecting the year 1852 with +/- 2 years (to cover 1850-1854) and then go up to 1857 (to cover 1855-1859)?

Exactly correct. 
Remember to search with "similar sounding variations" to try to catch different spellings.