From familysearch.org. Wonder if 'Myra' is a nickname as one lists mother as Margery, another lists dau as Marjory and mother as Myra ???? Or could be 2 different Charles B Shavers but birthdate appears to be same.
Ontario Births
Name: Charles Benoni Shaver
Event: Birth
Event Date: 01 Oct 1890
Event Place: Beverly Township, Wentworth, Ontario
Gender: Male
Father: George Shaver
Mother: Margary Galbraith
Registration Number: cn 36570
Film Number: 1846440
Digital Folder Number: 4656897
Image Number: 259
United States, Border Crossings from Canada to United States
Name: Charles B Shaver
Arrival Date: 10 Jun 1939
Arrival Port: Buffalo, New York,
Birthplace: Wentover , On
Birth: ??90 Oct 1
Gender: Male
Accompanied by: Wife Edith; Daughter Marjory
Departure Contact: Mother Myra Shaver
Arrival Contact: Brother-in-law Kenneth Martin
Record has photo?: N
NARA Publication Title: Manifests of Alien Arrivals at Buffalo, Niagara Falls, and Rochester, New York, 1902-1954
NARA Publication Number: M1480
NARA Roll Number: 125