Some directories are avaialable to search of (free) download at , but the 1873 whites was ob a CD from Midlands historical data (
https://www.midlandshistoricaldata.org/). Remember that the date is the date of publication, and so is likely to be a year osr so out of date, sometimes in earlier directories even more. The extract is below:
I was mistaken saying that Blakeland st was not listed in the 1872 directory. It was listed, but under a general term "Little Bromwich". Looking for "Flavell" we get:
Flavell Benj. scrap metal dlr. Blakeland st. Little Bromwich
Flavell Charles,
Green Man, 36 Coleshill street
Flavell Edward, gun implement maker, 4 Court, Bath street
Flavell Henry, farmr.Stonehouse frm.Northfield,via Quinton
Flavell James, pig dealer, Blakeland st. Little Bromwich
Flavell Job, beer retailer, 5 Gas street
Flavell John, gun & pistol polisher, 4 Court, Bath street
Flavell John,
Sir John Falstaff, 58 Weaman street
Flavell Joseph, beer retailer, Woodgate, via Quinton
Flavell Matthew, confectioner, 111 Bristol street
In
1868 the only relevant one is Benjamin given as Scrap metal dealer , Blakeland St ,Small heath and as general dealer, Little Bromwich, Ward End. Charles is at The Vine, Lichfield Road.
In
1867 Benjamin is listed just as a scrap metal dealer at Blakeland St. Charles is at The Vine, Lichfield Road.
In
1862 Charles ( well not that one) and Benjamin are not mentioned.
Going forwards (only listed Benjamin and Charles unless in Blakeland St):
1876. Benjamin is scrap dealer, blakeland St ;Charles at the Rainbow Inn, 160 High St Bordesley ;. James Flavell is a pig dealer , Blakeland St .
1878 Benjamin is a beer retailer at Blakeland St ; Charles is at the White Horse Cellar pub 80 Constitution Hill ; Jas (James ?) is a pig dealer and shopkeeper , Blakeland St.
1879 Benjamin is a beer retailer at Blakeland St (there also is a Benjamin Flavell, builder, 3 court, Branston St - probably no connection) ; Charles is at the White Horse Cellar pub 80 Constitution Hill AND the Horse & Jockey, 120 digbeth. ; Jas (James ?) is a pig dealer and shopkeeper , Blakeland St
1880 Benjamin is a beer retailer at Blakeland St addition (there also is a Benjamin Flavell, bricklayer, Hingeston St- probably no connection) ; Charles is at the White Horse Cellar pub 80 Constitution Hill AND the Horse & Jockey, 120 Digbeth. ; Jas (James ?) is a shopkeeper , Blakeland St.
1882, 1883,1884 Benjamin is a beer retailer at Blakeland St (there also is a Benjamin Flavell, bricklayer, Hingeston St - probably no connection) ; Charles is at the Horse & Jockey, 120 Digbeth. ; Jas (James ?) is a shopkeeper , Blakeland St
1888, 1890 James, shopkeeper & metal dealer, Blakeland St ; Mrs Jane Flavell, beer retailer, Blakeland St.
(No Charles but also Misses Alice & Fanny Flavell , beer retailers at 115 Digbeth - which seems coincidentally (or other) close to Charles address at 120)
Only went up to 1890. If you have interest later ot other names, let me know