Ancestry.com. Ohio, County Marriage Records, 1774-1993 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2016.
Original data: Marriage Records. Ohio Marriages. Various Ohio County Courthouses.
Year: 1880; Census Place: Oswego, Oswego, New York; Roll: 913; Page: 301C; Enumeration District: 244
Year: 1930; Census Place: Toledo, Lucas, Ohio; Page: 6B; Enumeration District: 0049; FHL microfilm: 2341569
The parents of Clara were Adolphus Laplant and Lucinda. Clara had an older brother named Fred. Lucinda (born in Canada) married later a Charles E Peck.
Here is your Clara in the 1900 US Census:
This confirms the info Eddie posted in comments.
According to the 1875 NY State Census and the 1880 US Census Adolphus was born in Canada as well.
(Adolphus listed in the left hand side page, line No. 5)
(Adolphus in line No. 45. The aforementioned son Fred is 5 y/o)