The first one may be easily explained. Russell Card Co. in Milltown, NY operated only from 1912-1928, being acquired by USPC in '29. Much as with the modern Bee and Tally Ho decks, the Russell name was kept in use for many years later.
https://sites.google.com/site/cardconjurer/article/dating/manufacturers#RPCIt doesn't explain the lack of an Ace of Spades code, but not all USPC decks have the codes. Modern Congress decks usually have pre-printed faces done in bulk, then the faces are run off usually at another time, so because the printing of the face and back can occur in different years, USPC doesn't encode the Aces of Spades on them.
On the 999 Steamboats, the L code isn't just '08 or '29. It could also be '49, '69, '89 or 2009. 2009 is rather unlikely, but the brand was regularly manufactured into the early 2000s, with at least two reprintings since then, both easily distinguished from the original models. The best cues to the deck's age you might have there is the Joker as well as the colors and pattern of the back. I could be wrong, but that Steamboat joker was not the first joker type the brand used. They've had a number of different designs, including a few that weren't very politically-correct these days.
The last one can be easily explained. Looking at the same manufacturer list I used for the first deck, I can see that the National Card Co. had offices in both Indianapolis and New York, but it remained independent for only a very short time, from 1886 to 1894, after which time they were merged into USPC. That box likely was made in that time span.