The necklace and bracelet that Candace Cameron Bure wears throughout the movie actually belong to her 90-year-old grandmother; they were purchased by her grandfather in the 1940s.
Malmedy where the husband was in the war is in Belgium, not in France like she says.
One of the police officers says, "I've never heard of a Hudson", standing next to another officer played by Oliver Hudson.
While last names are not credited in the movie, The doctor in the beginning calls Hanna, Mrs. Norris. And a close up of Dottie's old post card shows Dottie Michaels.
A little under a year after the film premiered, on October 17th 2017, it received a novelization by Leigh Duncan, released as the first e-book from the recently launched Hallmark Publishing.