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