Marie Louise Frenette born Aug.11,1855 in Quebec City (St-Roch parish) daughter of Jacques Frenette and Émilie Parent.We can find her with her mother, brother and two sisters in the census of 1870 in Chicago (name Mary Frinnet).No mention of the father (maybe dead).I also find a Mary Halley who die July 26,1892 in Chicago (Illinois Death certificate #00006812 for verification).
If we can have her marriage certificate or inscription in the parish register (both Ferdinand and Mary were roman catholic) that will confirm it.
For your information her ancestry are:
Jacques Frenette (son of Jacques and Françoise Manceau) mar. Oct.8,1844 Québec (St-Roch) Émilie Parent (daughter of Francois-Xavier and Marie Latarte)
Jacques Frenet (Pierre and Isabelle Thibaudeau) mar. Aug.4,1807 Québec (Notre-Dame) Francoise Manceau (Jean-Baptiste and Josette Levasseur)
Pierre Frenet (Pierre and Catherine Gignac) mar. Oct.5,1761 Deschambault Isabelle Thibdaudeau (Olivier and Isabelle Melancon)
Pierre Frenet (Michel and Olive Delavoye) mar. Apr.17,1731 Deschambault Catherine Gignac (Francois/Marie-Anne Duclos)
Michel Frenet (Michel and Christine Juneau) mar. June 26,1684 Neuville Olive Delavoye (Pierre and Jacquette Grenon)