In order not to waste time/effort looking for people with "invalid" detail, I attempted to verify the start point.
That's all. ( I don't see anything wrong with that )
Typo? Speeling?

DoB? (Anything could be wrong.)
Original post = "His father was Richard James Hebert." ( not Harry )
As you have now said . . . . . "If the 1900 is the correct one ", then father cannot be Richard
Either the Father is incorrect or the DoB is incorrect . . . . .
maybe putting this one (back) in the frame
1905 Qsep ISLINGTON 1B 155 FREDERICK EDMUND HERBERT mmn POYNTER
(Parents = Richard & Martha)