I am looking into the BEADLE family... My husband's Dad, Mervyn Beadle, was born in India around 1925, where his dad was a train driver probably during WW1. Mervyn's grandfather was in the British Army which is how he ended up in India. Mervyn had a brother called Derrick and another called Russell. There were step brothers and sisters, possible May and Trevor.
Sorry to be so vague, where do I start with this?

What's the first step to putting together a family tree... there is so much info around that I've found it all rather scary up until I found this very friendly and helpful site, so thanks to anyone for any tips!

Mervyn has lived in England since after WW2.