Possible conjecture. All information to be found on Family Search. (Free to view)
In 1901 William Allinson's maternal grandfather is shown as John Clyde, 62, born Tyrone, Ireland - father of Margaret b c 1872, Motherwell, Scotland.
In 1881 John and his wife, Ann, and children, including Margaret, b c 1872, are living in Gateshead. Margaret's place of birth is shown as Ireland!
( such errors not uncommon).
Margaret Clyde, born 28 August 1871. Dalziel, Lanarkshire. Parents John Clyde and Ann McVey. (Dalziel parish includes village of Motherwell). Census taken in the year before Margaret's birthday which accounts for the apparent discrepancy of one year.