I came across this statement:
1917 B-G (at 30) meets Russian-born Paula Munweis at Trotsky lecture, who works with B-G on political articles. In Dec. they marry in City Hall.
The author of the website seems to be very knowledgeable but he does not give references and my efforts to corroborate the above quote have not been successful.
To begin with, Wikipedia gives a different chronology for Ben-Gurion's marriage (but again, no citation!):
Settling in New York City in 1915, he [Ben-Gurion] met Russian-born Paula Munweis. They were married in 1917.
Apparently Trotsky was in New York in January-March 1917 but not in 1915 (from the wiki article on him). So the original quote is in some doubt.
Does anyone have conclusive sources for this?
EDIT: A bit of circumstantial evidence is provided by a letter written to Khrushchev by a Soviet professor of medicine, Graschenkov, who visited Israel in 1964 and met with Ben-Gurion and his wife. In the letter he writes that Ben-Gurion spoke highly of Lenin but dismissed Trotsky "whom we had known personally" as a "fanfaron". This suggests that the meeting did take place in 1917 (that's the position the publicator of the letter at the link I gave takes). However, there are arguments against such an interpretation:
I am not 100% sure the letter is real. It looks like the real McCoy but I can't discount the possibility it's apocryphal.
Assuming the letter is real, the bit about Lenin and Trotsky could have been embellished or made up altogether by the author to make the rest of it more palatable to Khrushchev.
Assuming the letter is real and the Trotsky reference is accurately reported in it, the acquaintance between Ben-Gurion and Trotsky could date to the former's 1923 visit to the Soviet Union instead of 1917.
So I'm still looking for conclusive evidence.