As a teenager I had been brought up in the Church of England. Not really knowing where I was heading in life, I read a "born-again" leaflet of no particular denomination which said if you want to know which church to join you should pray about it. I already had had a strong witness of the Holy Spirit when I was reading the Bible (first book of St John's Gospel), and I knew this was something I had to do. And so I prayed and investigated a number of different Christian denominations. No great revelation came at that time, but it was a number of years later that I finally got my answer.
I met missionaries from the LDS Church proselyting on the street. They taught me and as they told the Joseph Smith story the same Spiritual feeling overwhelmed me. I then knew that this was the true Church of Jesus Christ on the Earth today.
And why didn't I get my answer sooner? Well, my father was strongly anti-mormon and it wasn't until he passed away that I came across the missionaries. I strongly believe I would have been so discouraged by his negative view that I might never have joined the Church. The Lord knew when it was appropriate for me to hear the gospel.