A daily description of events in the summer of 1945, touching points around the world but centered (as that summer was) on the Trinity nuclear test. This episode has daily events for the week ending Saturday July 7th, 1945.

Sunday, July 1,1945 - 15 Days Before Trinity

https://en.wikipedia.org/wiki/Type_C4-class_ship

http://ww2troopships.com/crossings/1945b.htm

https://history.army.mil/books/wwii/7-8/7-8_7.HTM

http://www.yeide.net/World_War_II_History/Cavalry_Histories.html

Monday, July 2,1945 - 14 Days Before Trinity

https://en.wikipedia.org/wiki/William_Sterling_Parsons Captain William Parsons, US Navy - head of Project Alberta, which is the part of the Manhattan Project focused on delivering the bomb to it’s target.

https://en.wikipedia.org/wiki/Thomas_F._Farrell - Brigadier General Thomas Farrell, who is “Grove’s deputy for operations”

https://en.wikipedia.org/wiki/William_R._Purnell - Rear Admiral William Purnell is Navy liason to manhattan project, also the Navy’s deputy chief for materiel.

http://www.dannen.com/decision/testdate.html

The "IT" mentioned a couple of times there appears to be the Little Boy device, which was going to be transported to Tinian aboard the USS Indianapolis (then finishing repairs in the San Franciso area), and which Parsons was coordinating with Purnell.

Tuesday, July 3,1945 - 13 Days Before Trinity

https://automotivehistory.org/july-3-1945-ford-starts-postwar-production/

https://vtauto.org/1946-ford-tudor/

https://www.trumanlibrary.gov/photograph-records/64-57-01

Wednesday, July 4,1945 - 12 Days Before Trinity

https://www.nationalww2museum.org/war/articles/truman-independence-day-message-1945

https://www.trumanlibrary.gov/library/public-papers/72/statement-president-fourth-july

Thursday, July 5,1945 - 11 Days Before Trinity

https://en.wikipedia.org/wiki/1945_United_Kingdom_general_election

Friday, July 6,1945 - 10 Days Before Trinity

https://www.nationalww2museum.org/war/articles/delivering-atomic-bombs-silverplate-b-29

https://nuclearweaponarchive.org/Usa/EnolaGay/EnolaGay.html

Saturday, July 7,1945 - 9 Days Before Trinity

http://www.brigs.us/Phila/Candids1.htm — photographs from USS Philadelphia

http://www.brigs.us/Phila/reunion-files/and-we-were-there-Truman-Potsdam.htm - a first-person account of the trip

https://prologue.blogs.archives.gov/2014/08/14/truman-bacall-and-that-photograph/

https://www.history.navy.mil/content/history/nhhc/our-collections/photography/numerical-list-of-images/nara-series/80-g/80-G-600000/80-G-603322.html