I used some of Muriel's info as pointers, did some quick searching and came up with the following for you :
I think Clara BOURGOIN and Marie-Louise BOURGOIN parents were :
Dieudonné Bourgoin and Philomène Villeneuve.
I have other siblings for Clara and Marie-Louise.Do you have them??
Dieudonné Bourgoin (Célestin Bourgoin & Apolline Allard) married Philomène Villeneuve (Octave Villeneuve & Clémence Thouin) in Notre-Dame de Montréal on July 02, 1872.
Célestin Bourgoin (Jean-Baptiste Bourgoin & Geneviève Charland) married Apolline Allard (Joseph Allard & Marie Demarbre) On October 22, 1827 in Saint-Henri-De-Mascouche, Mascouche Quebec.
** Note : I found them under 'BOURGUN'.
Now, as far as your William Bell and Clara Bourgoin, I found two childrens :
1- Antoinette Bell (William & Clara Bourgoin) married Henri Briard in Montréal on October 18, 1910.
2- Alfred Bell (William & Clara Bourgoin) married Joséphine Dorion in Montréal on May 15, 1917.
For Robert Bell and Marie-Louise Bourgoin, I came up with the same info as Muriel did.We have the same 4 offspring all married in Montréal :
1- Sara Bell to Adrien Richard July 30, 1921. 2- Théodore Bell to Léa Sinette April 05, 1924. 3- Robert Bell to Annette Parthenais October 27, 1928. 4- Annette Bell to Paul-Émile Couture September 11, 1943.
I believe Muriel and I have done it here.You have enough info here to keep you busy for awhile.
If you can't find what you are looking for with the 'Bell' lines, you most likely will with the collaterals lines....