It seems that there were two Adelaide RITTENBERGs, both born in Massachusetts and lived later in NYC (one in Manhattan & the other in The Bronx.)
Adelaide R. Rittenberg born 1891 (parents Louis & Lillie.) The Bronx family.
Adelaide G. Rittenberg born 1894 (parents Isaac & Annie Marks. Later census give mother as Belle.) The Manhattan family.
Adelaide G. Rittenberg married Henry Samson in NYC 26 Jan 1915.
I believe it was Adelaide R. Rittenberg who married Martin Edwin BRY in NYC 2 Jun 1919.
A January 2, 1918 notice in the NY Herald announced the engagement of MIss Adelaide Rittenberg (dau. of Mr. & Mrs. Isaac Rittenberg) to Lt. M. Edwin BRY. No mention of any previous marriage.
Hope this helps, and Happy New Year,