Searching for any information or living descendants of my Grandfather John Major

I don’t know much about my Grandfather because he died just before I was born
This is what I do know;
Born in around 1890 in Svati Kris Czech Republic
He was a Piano Tuner
He travelled to America at some stage of his life
He travelled to Australia
He married Elice Holik in Manly (Sydney) NSW Australia 1922
John and Elice had 3 sons and a daughter
Elice died during childbirth in 1927
Died 1958 in Wangi Wangi NSW Australia