Let me get this out of the way first:
I don't think this Dr Fred Bell is the grandson of A.G. Bell, as you can see it isn't mentioned below... the guy seems a bit of a whackjob to me.. (If he was A.G.Bell's grandson, he should be about 90 now)
(I'm sure A.G Bell would be turning in his grave if one of his grandsons was into crystal power, alien contact, and things)
His site is presented like any other scam site, like those you see offering immortality and "relationship advice" from some self-proclaimed master
I'm offended that he calls himself a scientist.
Now that's dealt with: Back to the real subject, you, krhyou:
Alexander Graham Bell had four children:
Elsie Bell (born 1878)
Marian Bell (Daisey)
And two sons who died young
Here are their children:
Marian:
Alexander Graham Bell Fairchild (1906-1994)
Barbara Lathrop Fairchild (1909-1998)
Nancy Bell Fairchild (1912-1976)
Elsie:
Melville Bell Grosvenor (1901-1982)
Gertrude Hubbard Grosvenor (1903-1986)
Mabel Harlakenden Grosvenor (1905- )
Lilian Waters Grosvenor (1907-1985)
Alexander Graham Bell Grosvenor (1909-1915)
Elsie Alexandra Carolyn Grosvenor (1911- )
Gloria Victoria Grosvenor (1918-1972)
And Alexander's brother had one child:
Edward Charles Ottoway Bell
It doesn't look like you are a direct descendant, as A.G.Bell's children (who survived) were both female, and so the family name wasn't carried on.
You do have one chance in "Elsie Alexandra Carolyn Grosvenor". She might have married a man with surname Bell and could well be "Mother Carrie" (from Carolyn).
Look into her first!!! (apparently she's still alive?? )
If that comes to a dead end,
look into A.G.Bell's parents and see if they had other children that might have carried on the name to your mother. Or
look up this Edward Charles Ottoway Bell, and see what his family tree is like.
I'm sure
GeneGenie will be along to help soon. He's awesome. ;)
Some good Genealogy resources are
listed here. With the full name and birthyear, you should have no trouble tracking down some of these people and finding family.
Good luck!