
"Speak."
The information thus provided is indeed from a published source.
It is all to be found in the first novel conversion that Robert Thurston wrote, which adapted the story that Glen Larson wrote and the script that he dramatized and employed when he, Leslie Stevens, and John Dykstra produced "The Saga Of A Star-World."
Larson received a joint authorship credit for that novel.
It is in the passage where and when Adama finds the ruins of the house he and Ila shared, and it is written as the text in which he sorrowfully remembers his now-deceased wife.