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Dear mayor of our town!
I write this letter to you  cause I have suggestion  to name  the park after.
He is Yuri Gagarin . Yuri Gagarin was the first cosmonaut in the world, who in 1961 became the first man to travel into space.Gagarin was awarded the Order of Lenin and given the titles Hero of the Soviet Union.
A lot of monuments were raised to him, and streets were renamed in his honor across all word. This cause I think to name new park after Yuri Gagarin is great choice!
I hope that my suggestion will help you.
Best wishes.
.........