This post is a work in progress ...
1. Red Cross Street:
This image of Red Cross Street Cripplegate from the collection of the British Museum and dated 1851.
On the map below St Giles Church is shown at the bottom of the map adjacent to Fore Street - running off Fore Street up to "Beech Street Tunnel" [the Road named "Barbican"] is Red Cross Street.
Here is a link to a 1896 map at the National Library of Scotland which shows a larger area:
https://maps.nls.uk/view/101201562#zoom=3&lat=6165&lon=10916&layers=BT
*******
2. Denzell Street:
In 1869 my Great Great Grandparents were married in St Clement's Church in the Strand. At the time they were living at Number 2 Denzell Street.
Denzell Street just below the "K" in King Street: Now under the Aldwych redevelopment.
*******
3. 26 Philpot Lane:
Whereas Philpot Lane is still in existence, number 26 where my Great Grandfather's Brother had his business c1875 is now under the "Walkie Talkie" building.
Long before the "Walkie Talkie" [official address Number 20 Fenchurch Street]:
A London Street Directory of 1875 shows the following occupants of
Number 26 Philpot Lane:
Beckley & Co. ship & ins. brokrs James & Sons, starch manufctrs
Bevan James, manufactrs. agent Polson Wm. & Co. starch pwdr.mas
Grain Arthur Tress, auctioneer Glenfield Thread Co
Grain Henry, solicitor James Bevan, agent
Greenhill Thos. Fredc. paper mer Snow Robert Ackland, plumber
HallWallace & Co. hemp brokers Sperring Fredk. Wm. accountnt
The photo gives some indication of where Philpot Lane is in relation to the Thames.
*******