The History Chicks: Unknown number of erroneous podcast "self" credits

This podcast has a bunch of "self" credits for historical figures and celebrities, an unknown but probably high number of which are invalid and should be deleted.

The History Chicks: https://www.imdb.com/title/tt15469170/fullcredits/

I just listened to most of an episode from this podcast. The only voices I heard on the episode were those of the two hosts (not counting advertisements).

Some of the historical figures listed on the cast page of this series died long before the invention of sound recording. Most of them aren't even marked with the attribute "archive sound".

It seems like someone's been diligently adding the names of individuals who are discussed in the podcast as if they were cast members. Several of the names appear to have been created specifically for this podcast, as they have no other credits on their page.

I haven't the time to sift through all 101 of the non-host cast credits for this series, so I can't be sure that all of them are invalid. Some of them appear to be for contemporary writers who may have been guests on the show, which of course would be legitimate credits if that were the case. Any credits that do not actually represent a voice heard in the podcast should be deleted (the podcast has no video component so any "archive footage" attributes/credits do not qualify and should also be removed).

The following name pages are almost certainly not valid credits and have no credits on other titles and therefore should be deleted:

• https://www.imdb.com/name/nm7059967/ - Alan Hargreaves
• https://www.imdb.com/name/nm8451403/ - Sarah Barton
• https://www.imdb.com/name/nm11379994/ - James Keller
• https://www.imdb.com/name/nm13429295/ - Charles Ingalls
• https://www.imdb.com/name/nm13429296/ - Caroline Ingalls
• https://www.imdb.com/name/nm13429928/ - Arthur Keller
• https://www.imdb.com/name/nm13429929/ - William Keller
• https://www.imdb.com/name/nm13429930/ - Sarah Simpson Keller
• https://www.imdb.com/name/nm13432744/ - Stephen Barton
• https://www.imdb.com/name/nm13432745/ - David Barton
• https://www.imdb.com/name/nm13432746/ - Dorothy Barton
• https://www.imdb.com/name/nm13432747/ - Sarah Barton Vassall
• https://www.imdb.com/name/nm13432933/ - Charles Dodgson
• https://www.imdb.com/name/nm13432934/ - Fanny Lutwidge
• https://www.imdb.com/name/nm13432935/ - Edwin Dodgson
• https://www.imdb.com/name/nm13432936/ - Henry Liddell
• https://www.imdb.com/name/nm13432937/ - James Liddell
• https://www.imdb.com/name/nm13432938/ - Rhoda Liddell
• https://www.imdb.com/name/nm13432939/ - Albert Liddell
• https://www.imdb.com/name/nm13432940/ - Violet Liddell
• https://www.imdb.com/name/nm13432941/ - Frederick Francis Liddell
• https://www.imdb.com/name/nm13432942/ - Lionel Liddell
• https://www.imdb.com/name/nm13435572/ - Edwin Stanton Earhart
• https://www.imdb.com/name/nm13440402/ - Henry Ball
• https://www.imdb.com/name/nm13440403/ - Désirée Ball
• https://www.imdb.com/name/nm13440971/ - Jacques d'Arc
• https://www.imdb.com/name/nm13441014/ - Powhatan
• https://www.imdb.com/name/nm13441015/ - John Rolfe
• https://www.imdb.com/name/nm13547681/ - Dandie
• https://www.imdb.com/name/nm13547682/ - Islay
• https://www.imdb.com/name/nm13705209/ - John Tobin
• https://www.imdb.com/name/nm13705210/ - Johanna Collins
• https://www.imdb.com/name/nm13705211/ - James Joseph Brown
• https://www.imdb.com/name/nm13705212/ - Lawrence Palmer-Brown
• https://www.imdb.com/name/nm13705213/ - Catherine Ellen Brown
• https://www.imdb.com/name/nm15471413/ - Eos the Dog