Circumstances, rather than trying to dodge the vote, caused some to miss the vote.
Some missed the vote because of bad weather in their home district. Steve King, R-Iowa, was one of the main backers for the Christmas resolution, but he could not get to the vote as a storm in Iowa had snarled transportation.
At least one Dem, who missed the vote, apparently had a committee or important meeting previously scheduled at the same time as the vote.
I’m sure that some Dems missed the vote on purpose, but it may be hard to specify for certain which Dems those are.
See link at #5 for a list of the votes.