Goggle search results confusing, help please.

Hello Everyone,
I have a situation with google search results I don't understand and I'm hoping you folks here can help me out.
I've been publishing a "fan site" about a musician for 5 to 6 weeks. Been slowing moving up in page ranking, etc., here's the situation and question.
About 12:30 pm Saturday, I entered this person's name into google search (no quotations marks or such), results, for my page, showed page 1, 3rd from top (yes, I was very happy).
3 hours later my daughter in law googled for me again, different computer-different physical location [this is my first site and yea, I wanted to brag a little ]. Results page 2, bottom.
At 10 pm I get home and google again, 1st page, 3rd from top.
I immediately call my daughter, get her to google for me, results, 2nd page, bottom.
Right away I email a friend, 20 miles away, and within 15 minutes return email states he googled the name and results were 3rd page, 2nd from top.
So I google again and this time my results are the same as my friends, page 3, 2nd from top.
Everyone entered the name the same.
I assume that the 'google dance' would not happen this quickly.

Your insight would be appreciated !

Thank you.
Steve