Unable to find hubbies grandfathers birth

Hello all

Arthur Baker (probably Artur Backer/Becker) was born in Herford, Germany on 22 September 1872. His father name (from marriage cert in 1910) is William Henry Baker (a butcher by trade) his mother is unknown. I have searched suggested online resources but was unable to figure out what to do on a couple of them due to language issues.

Are there trade directories or the like available for 1870’s onward. Possible the father was still alive and a butcher in 1910.
Can anyone give me suggestions of where to find a possible marriage of William Henry Baker and ?, or possible siblings for Arthur born pre 1872.

Lyn Baker
Australia

I found him in my database as emigrant from herford in 1880. But not
   yet if he emigrated alone and via what route and which ship. The
   lutheran archives in australia might be of help. Do you know whom he
   married and where he died?

I have his birthday as 17 sept 1872

Hello Horst

Apologies. His birthday is 17 Sep 1872

Arthur Baker married Emma Maud Louisa Robinson 15 Aug 1910 in Cottesloe Western Australia
He died in Caulfield Convalescent Home on 09 Jun 1957 and was cremated at The Necropolis Springvale on 12 Jun 1957.

This is a link to his request for naturalisation.

https://recordsearch.naa.gov.au/SearchNRetrieve/Interface/ViewImage.aspx?B=34391

There is no record of Arthur in Lutheran archives and he was not Lutheran while in Australia.

Thankyou for your assistance.

Lyn