A great Inner Sanctum page: http://www.old-time.com/otrlogs2/inners_mg.html
Another great page is OTRR First Line Page for Inner Sanctum
41-01-07 Death For Sale was 52-07-13 Death For Sale (sponsored by Pearson Pharmaceutical). Correct show for 41-01-7 exists.
41-02-11 The Howling Dog was 41-01-07 Amazing Death of Mrs Putnam (although there is a howling dog in this story, there is no existing copy of Howling Dog))
41-04-20 The Fog was 50-12-04 Beyond The Grave
41-05-18 Dead Freight was 52-07-06 or 52-10-05 Death Pays the Freight
41-05-25 Death is a Joker was 44-06-10 Death is a Joker
41-10-19 Hell Is Where You Find It was 46-02-12 The Man Who Couldn't Die (Elixir Number Four). Correct show exists.
42-06-14 Terrible Vengeance is the 1952 Australian version
42-08-22 Mind Over Matter was 52-08-24 No Rest For The Dead
42-08-23 Dead Man's Magic was 52-08-24 No Rest For The Dead (sponsored by Pearson Pharmaceutical and next week's show is Strange Passenger)
42-09-20 Dead Walk at Night was 52-09-28 Dead Walk at Night. Only the 1952 ep stars Donald Buka. The 1942 ep probably does not exist.
42-12-19 Beyond The Grave was 49-12-19 Beyond The Grave
43-02-07 Black Sea Gull s/b 43-03-07
43-06-05 (or 43-06-06) Death Across The Board s/b 45-06-05
43-06-06 House Where Death Lived was 45-06-05 Death Across the Board
43-08-22 Bog Oak Necklace was 45-04-10 Bog Oak Necklace. Tune in Next Tuesday night.
44-01-08 The Dead Laugh or The Death Laugh was 46-09-23 The Dead Laugh aka Ghosts Always Get The Last Laugh (Mystery Playhouse)
44-02-14 Birdsong for a Murderer was 52-06-22. 1952 version stars Boris Karloff.
45-03-06 Lost Refrain was 52-07-27 Murder Prophet
45-03-13 Island of the Dead was 41-12-07 Island of Death (with Pearl Harbor news)
45-04-03 Meek Die Slowly was 52-09-07 Meek Die Slowly (with Arnold Moss)
45-04-03 is thought not to exist. The next week's show is announced to be about a newlywed couple. Since the 52-09-14 episode is Till Death Do Us Part and the 45-04-10 episode is The Bog Oak Necklace, we can conclude this show is 520907.
45-10-30 Death For Sale was 52-07-13 Death For Sale
45-10-30 The Man Who Couldn't Die was 46-02-12 The Man Who Couldn't Die (Elixir Number Four)
46-04-02 Night Is My Shroud s/b 49-10-24. Mentions Kenneth Lynch, coming winter season
46-10-07 The Listener was 52-07-20 The Listener
46-11-25 No Rest For The Dead was from 52-08-24. At 26:00 it is announced that next week's show is Strange Passenger.
47-01-06 Death Pays the Freight was Murder Off the Record either 49/04/11 or 52/08/03.
47-03-03 The Corpse Nobody Loved was 52-09-21 The Corpse Nobody Loved
47-05-19 Terror By Night was 45-09-18 Terror By Night (sponsored by Lipton)