A nice job! I can fill in some information. In all but one or two cases, the information comes from my copies of the LPs.
1000 - According to W.E.R.M. vol II, p. 225, this was the number first assigned to Tchaikovsky: Concerto no. 1 - Ciccolini/Cluytens/Paris Conservatory Orch. That was later LBC-1020. This number was apparently unused.
1007 - An interesting situation. Despite being credited to Malko/Phil. Orch., early issues of the Sleeping Beauty suite were a transfer of Victor 78 set M-673, Sadler's Wells Orch./Constant Lambert. My copy, pre-"Gruve/Gard" with the generic Bluebird cover, is 4S. Later issues, with much more modern sound, are indeed Malko/Philharmonia (later art cover, "Gruve/Gard," 11S in my copy.
1010 - Francesca da Rimini is Dobrowen/Danish State Radio Sym.
1011 - It is Sargent/LPO in Les Sylphides. The Galanta Dances are Basil Cameron/LPO. The Irving titles are as you show.
1015 - The narrator in Peter and the Wolf is Wilfred Pickles.
1020 - See LBC-1000. The orchestra is Paris Conservatory.
1023 - Blank in the 1955 RCA Victor numerical catalogue. Perhaps not used.
1024 - The Borodin 2 is the earlier of Malko's two Phil. Orch. recordings.
1026 - Verifying contents: Prince Igor: Polovtsi Marsh; Tchaikovsky: Serenade for Strings waltz - Dobrowen/Phil. O.; Gliere: Russian Sailors' Dance, R-K. Flight of the Bumble-bee - Malko/Phil. O.; R-K: Snow Maiden: Prologue & Dance of the Tumblers - Collingwood/Phil. Or.; Tchaikovsky: Evgeny Onegin: waltz & polonaise - Leopold Ludwig/Berlin State Orch.
1027 - Same as 1023 in Victor 19. num. cat.
1028 - contents: Elgar P & C #1 - Sargent/"Royal Festival Orch. & Cho." (live at opening of Royal Festival Hall, 1951); Sibelius: Finlandia - Malko/Phil. O.; Weber-Berlioz: Invitation to the Dance - Markevich/Phil. O.; Mendelssohn; Hebrides ov. - Leopold Ludwig/"German State Orch."; Wolf-Ferrari: Jewels of the Madonna: Acts II & III: intermezzi Vincenzo Bellezza/LSO
1030 - Byron Janis recital -- this was later moved to Red Seal as LM-2098.
1032/1037 - I have not been able to find any information about these numbers either. Perhaps they were unused.
1038 - Moiseiwitsch: the Chopin Preludes were only numbers 11-24, not the entire cycle. (One of Victor's stupidest things.) The Chopin Scherzi were numbers 1, 3, and 4.
1039 - orchestras etc.: Barber of Seville Ov., Samson & Dalila Bacchanale - Tullio Serafin/Orch. of Maggio Musicale Fiorentino; Spontini: La Vestale Ov. -Previtali/LSO; Rossini: L'Italiana in Algeri Ov; William Tell: dances - Serafin/Santa Cecilia Orch.
1043 - both concerti are Dorfmann with Leinsdorf/Robin Hood Dell Orch. (of course, both are Philadelphia Orch. members)
1046 - I also show this as blank
1048 - "Six Great Overtures": orchestras etc.: Flying Dutchman: Malko/Phil. Orch.; Beethoven: Egmont, Leonore 3 - Malko/Danish State Radio; Meistersinger Act I - Dobrowen/Phil. Orch.; Humperdinck: Hansel & Gretel - Boehm/Berlin PO (mislabelled "Saxon State O."; J. Strauss II: Die Fledermaus - Boehm/Saxon State Orch.
1049 - Mendelssohn Violin Concerto is Borries/Celibidache/Berlin PO. Itlian Sym. is Barbirolli/Halle.
1051/2 - the contents are reversed for the numbers on your list. 1051 was Tchaikovsky 4; 1052 was Brahms Concerto.
1056 - This was apparently Stock's edition of the Chausson Symphony: the trumpet chorale at the end of the finale is played here on the organ. (The same on the 78s, of course.)
1058 - Schumann: Symphony 3, Mitropoulos/Minneapolis SO: this was a reissue of Red Seal LM-1067
1060 - this was advertised as Haydn: Symphony 83, "La Poule" - Barbirolli/Halle; Symphony 100, "Military" - Malko/Royal Danish Orch., Copenhagen. - I have never seen a copy of this and dealers I have asked have said they never have either. So perhaps not issued.
1063 (Coronation Day) - the narrator is Richard Dimbleby.
1065 - Gaite Parisienne: is Suesskind/Orch. of ROHO, Covent Garden. The Strauss waltzes contained are only the two you cite. They are credited simply to Seidler-Winkler/"orch." Research might help about that.
1068 - MacMillan/Toronto Tchaikovsky 5 - this no. per the 1955 Victor catalogue. Perhaps not used. The recording was subsequently issued as LBC-1093 and, later, Camden CAL-374.
1073 - the Haydn quartet is Op. 64#5, "The Lark"
1076 - this also had Brahms's Capriccio Op. 76#2
1080 - contents: La Boutique Fantasque - Irving/Phil. Orch.; Mendelssohn-arr. ? -Songs w/o words: Spinning Song, Spring Song; Gounod: Mors et vita: Judex; Delibes: Naila: Intermezzo - Malko/Phil. Orch.
1083 - Barber of Seville exc. - later reissued as Camden CAL-386
1092 - all cond. by Fernando Previtali. Contents: William Tell: Ov. (Rome SO of the Italian Radio); Soldiers' Dance (LSO). Verdi: Forza Ov. (RAI Sym., Rome). Weber: Oberon Ov.; Wolf-Ferrari: Secret of Suzanne Ov.(LSO).
Hope this is of use. A bit more to come. Hats off for youyr work.
Don Tait