Gagne - St. Laurent Wedding Picture Puzzle

This is a family picture taken at the wedding of Adolphe Gagne and Adelaide St. Laurent

(parents of Francis Gagne - whose children were Luke, Matthew, Lauren and Mark).  This picture is significant because it is a combination of both the Gagne and St. Laurent Family (Adolphe and Adelaide were first cousins).  So basically all of our ancestors are in this picture.   Rita and I have gone over the picture and can identify a handful and others based on facts.  I am assuming most of the Gagne family is on the left and St. Laurent on the right.   The date is September 2, 1913 in Winchendon, Mass.   I have listed below facts of each family member that will help you to identify who is in the picture. I have also indicated the ID of the ones I feel are pretty certain.  And here's a question..why do you think most of the St. Laurent ladies are dressed in black?  Je ne sais pas   Also, how old do you think the child #18 is in the bottom right corner?

If you think I've gotten something wrong and have your own guesses.  Please let me know.

September 2, 1913 - Gagne/St. Laurent Facts as of that Day Wedding of Adolphe Gagne and Adella St. Laurent
Name	Role	Age	Known ID/My Guess	Comments
Gagne Family
Benoni Gagne (Great Grandfather)	Father of the Groom	58	#5
Marie St. Laurent Gagne (Great Grandmother)	Mother of the Groom Sister to Narcisse St. Laurent	54	#22
Adolphe Gagne	Groom	26	#13
Joseph Octave Gagne	Brother of Groom	28	My Guess #4 Maybe Best Man	Known as Octave – Married Apr. 1912
Flora Foisey	Wife of Joseph		My Guess #8	Would be 8 months pregnant
Albert Gagne	Brother of Groom	27	My Guess #11	Single
Virginia Gagne (Grandmother)	Sister of Groom	24	#3
Adelaide Gagne	Sister of Groom	23	My Guess #12	Married Fred Morin in October 1913
Blanche Gagne (Aunt Mimi)	Sister of Groom	20	My Guess #10
Anna Gagne	Sister of Groom	13	#1
Joseph Alfred Gagne	Brother of Groom	15	Not in Picture	Known as Alfred
Frank Gagne	Brother of Groom	12	#6
Marion Gagne (Claire Barbero's Mom)	Sister of Groom	4	#21
St. Laurent Family
Narcisse St. Laurent (Great Grandfather)	Father of the Bride	62	My Guess #15	Died in Apr 1915
Nymphodore St. Laurent (Great Grandmother)	Mother of the Bride	68	Either #23 or #19
Adelaide (Adella) St. Laurent	Bride	22	#14
Joseph St. Laurent	Brother of Bride	35	Living in Canada at the time	2 Children age 4 and 7 months
Desneige St. Laurent	Wife of Joseph	25	Living in Candada
Anna St. Laurent	Sister of Bride	34	My Guess #16 Maybe Matron of Honor	4 Children – age 8,6,4, and 3
Louis Germain Jean	Husband of Anna		My Guess # 17
Frank St. Laurent (Grandfather)	Brother of Bride	29	Not in Picture	Single
Alfred St. Laurent	Brother of Bride	28	Not In Picture	Died in WWI 1916
Alexis St. Laurent	Brother of Bride	26	My Guess #20	Daughter Irene 3 mos.
Marie Paquette	Wife of Alex	24	Maybe #9
Charles Manfred St. Laurent	Step Brother of Groom	39	My Guess #7	Lived in Norwich close to Marie  St. Laurent
Marie Lavoie St. Laurent	Wife of Charles	35	Possibly #9
#2 Unknown
#19 Unknown	Could be Nymphodore or related to her
Irine Jean	Daughter of Anna and Louis Jean	3	Possibly #18