Hi weemee.
Yes they were living in Linfield St., in 1911, but 1910 street directory has John Higgins living in Lawyer St., which was just around the corner from Linfield St.
In 1901 Sarah Higgins is living at Gilbert's Court, in Lurgan, and listed as head of household.
Her brother John Johnston, age 17, was living with the family.
John Higgins may have been in Belfast working, possibly in Linfield Mill, which is local to the addresses mentioned.
Have a bit of info on the family if you are interested in it. It's not a lot but may help.
Regards.
Dixie
P.S. Just went through my note and found out you are right about them living at Lawyer St., in 1911,..
They must have moved to Linfield St., after that.
Annabella was married from Linfield St., and died at Linfield St.
Thanks for quering the address, but for you I would not have found out my mistake.