When Rita read the partial address still visible on the package she said Peggy, Mary Lou and Bunny lived on "(something) County Road". But later Mr. Everett told them the Kessler lived on "Kenny Road".
The bottle of milk that Norman said he milked himself could not be raw milk straight from the cow. Raw milk is not white but more of a cream color and has as much as 1/3 heavy cream on the top. Milk that white and with no cream at all has to be pasteurized.
Shane felt responsible that she was the one who confirmed the vase was stolen during WW2 and that if she only hadn't looked into it the family could have sold the vase. However any licensed art dealer must confirm what they are buying hasn't been reported as stolen so if Shane hadn't said anything the art dealer would have figured that out before buying it anyway.
When Oliver and the Haywiths are alighting from the Starliner at the Kellser farm the mobile home has obviously flat tires.
In the final scene Oliver and Shane are in an open field with cows. During the long shots the cows are all off in the distance. During the close up shots there are multiple cows close behind Shane.
Mr Everett didn't age at all over 18 years.