MARY RYAN..can you help ?

Myself and my mum have been looking for our relatives for a long long time can you help?

My mum joan patricia [ryan] [berry] now hollings, was born on 7 september 1948, at uppernewington st,liverpool, her birth mother is mary ryan, mary ryan gave my mum up, to my now decesed grandparents lydia n william berry, withg help from lydias sister irene [foo].
Mary ryan had another daughter we think she kept, she may have had other children too.
my mums real dad was chinese, thats all we know..
do you know of them or any friends ect?
any info please help.
#thankyou x
not a lega adoption also we tried lots ways, salvation army, online searches, placing many adds, records, births deaths marrages ect..

Also.. mary ryan could married, died, but she def has other children, my grandparents william n lydia berry took my mum to blackburn,
thanks

Tried the routes website. Very helpful.

Im not sure petstalk..i will take a look shortly..thanks...
someone must have known or know them or lived near to them ect... or remember..ill keep trying xxx