Cunningham conundrum in Canada

We (Jeff Scratch & Patch & myself) are hunting down information about two? Cunningham boys, Herbert and Edgar, apparent sons of Charles Cunningham and his wife Mary E Robinson.
(previous thread about Charles Eugene Cunningham eldest brother of Herbert & Edgar.)
http://ift.tt/1V4Fdqy

Our dilemma
We have a birth record for Edgar Cunningham, born 26 Dec 1878 at Chatham, Kent, Ontario, Son of Charles Cunningham& Mary Elizabeth Robinson
http://ift.tt/1EfbcQP

but nothing else, no death, census appearance in parental home, marriage.

We do have census records showing a son Herbert in the family home, but NO bp or birth
1881 aged 5 http://data2.collectionscanada.gc.ca...e008207954.jpg
1891 aged 14, apprentice baker http://data2.collectionscanada.gc.ca...8175-00276.jpg
1901 can’t find him
1909 marriage - 24 Jul 1909 at Toronto, York, Ontario Herbert Cunningham Age: 36 Birth Year (Estimated): 1873 Son of Charles Cunningham & Mary Elizt Robertson
Married Julia Mcuen Age: 40 Birth Year (Estimated): 1869 Daughter of William Mcuen & Mary Barrett

1911 can’t find OUR couple I think the following is for a different pair
http://data2.collectionscanada.gc.ca...e002029051.jpg

1914 death 26 Aug 1914 at Toronto, York, Ontario Herbert Cunningham Age: 41 Birth Year (Estimated): 1873 Son of Chas. Cunningham & Mary Robinson

I wonder if Edgar & Herbert could be the same?? whilst Jeff thinks there were probably two boys. He has searched resources in his local library but cannot find a death or burial for baby Edgar nor a birth for Herbert.
Opinions and help, please.

Jay

Cunningham conundrum in Canada