Looks like it, John.
Elizabeth Armstrong - daughter of John 1860 and Eleanor Green - married George Chandler on 28 Dec 1857 in Bedford St Paul.
They had umpteen children - Annie b 1863 was child No 3, and my g-grandmother Sophia was child No 11 b 1878. Like the Ravensden Armstrongs, the Chandlers were addicts of the job-lot baptism and Annie was baptised in Dec 1867 along with 4 or 5 siblings.
I know nothing of Annie, although I do remember many of her sisters - Aunt Lou (Louisa 1869) Aunt Harriet (1874) and Aunt Lot (Charlotte, one of the twins b 1876). They used to send me postal orders and improving books for Christmas.
A quick check shows that Annie Chandler married Charles Bernhard Pfau in Shoreditch, qe Sep 1884. 1901 census shows her birthplace as Bedford.
But which Annie is she? In 1881 one of the 1863 Annie's is a visitor to a George Denton in Bedford - implication being that she is more likely to be the Ann Elizabeth Denton Chandler, although no relationship is given to George. The other Annie (listed as Annie Elizabeth) is a servant at a school in Bushey, Hertfordshire. This one seems most likely to have been the Annie that married Charles Pfau in London, as she was already over halfway there, and if the other Ann is the one with the Denton connection, then this Annie must be the daughter of George and Elizabeth...all a bit convoluted but I am sure you see what I mean!
I can't find entries for either of the Annies in 1891. Nor for Ann E D Chandler in 1871.
I have put a question on the Pfau thread - if the marriage certificate of Annie Chandler and Charles Pfau has arrived, then a partial solution is at hand... I say partial, because you can't be sure that both Annie's weren't fathered by a George. The only way to be certain is to get birth certs for both of the Annies.
Thanks for bringing this to my attention! Another mystery to solve....