missing cigarette cards

[harry747 17]

i have some sets of cigarette cards that are almost complete with only one card missing from each set. so i went to rdr2.org to find out where they are supposed to be, but i can't find them. for example,

- prominent americans card 4 is supposed to be on the porch of a farmhouse near valentine. nope.

- breeds of horses card 8 is supposed to be on a workbench at veterans homestead. i found a workbench but the card is ot there.

- i also ned gems of beauty card 5, which is supposed to be in a shack in the heartland oil fields. i'm gonna check that next, but i won't be surprised if the card is not there.

whats going on? why are those cards not there?