Not found in Blue Drouin as BEAUCHEMIN, possibly listed under PETIT?

Found in ancestry tree https://www.ancestry.com/family-tree/person/tree/120242759/person/352006502134/facts

Joseph PETIT dit BEAUCHEMIN as son of Paul, born 1762 in Varennes, married to Josette BRINDAMOUR-BONARD 31 Jan 1785 in Beloeil, she died in 1827.

Married children of Petit Joseph and/or Brindamour Josephte   
 Name    Born    Death    Father    Mother    Husband/Spouse
 Joseph Petit    16 Dec 1785        Joseph Petit    Josephte Brindamour    Gauthier Catherine
Lamoureux Marie
 Paul Beauchemin    14 Jun 1787        Joseph Petit    Josephte Brindamour    Casavant Elisabeth
Lamoureux Josephte
 Judith Petit    02 Aug 1793    14 Mar 1881    Joseph Petit    Josephte Brindamour    Courtemanche Louis
 Esther Petit    19 Feb 1797    20 Mar 1872    Joseph Petit    Josephte Brindamour    Brouillard Antoine
 Olivier Petit    1805        Joseph Petit    Josephte Brindamour    Brodeur Josephte
 
Bachelors, Spinsters, Anonymous, Children According Register or Census      
 Name    Born    Death    Father    Mother
 Pierre Petit    04 Oct 1788    06 Apr 1790    Joseph Petit    Josephte Brindamour
 Marie-Josephe Petit    27 Jun 1790    17 Jul 1791    Joseph Petit    Josephte Brindamour
 Augustin Petit    05 Jan 1792    03 Jul 1795    Joseph Petit    Josephte Brindamour
 Marie-Archange Petit    21 May 1795    04 Aug 1797    Joseph Petit    Josephte Brindamour
https://www.nosorigines.qc.ca/GenealogieQuebec.asp...oseph&pid=274645

https://www.ancestry.com/family-tree/tree/22335572/family?cfpid=1219482531

also https://www.ancestry.com/family-tree/tree/119012788/family?_phsrc=cbk38&_phstart=successSource&cfpid=140182331891&fpid=140184936168&usePUBJs=true