Hi MarieC,
I can empathise with your post!

I have a Great Grandfather, Thomas Louis Newman, who appears on my Grandmother's Birth Cert in 1902, - Occupation 'Comedian'

...& then disappears!! I haven't been able to (conclusively) find any other records for him:-(
According to my Grandmother, he had another wife & family, - but I'm unable to verify this. I've never been able to find any record of him marrying my Great Grandmother, Frances Dyer, - although she calls herself Newman on my G/Mother's Birth Cert, - & her name is given as Frances Newman on her Death Cert.
It is very frustrating!!!
Best Wishes, Romilly.