Grandpa's First Name?

[Gadget]

I've just read this and was about to offer Adlai Stephenson as a similar first name.

https://en.wikipedia.org/wiki/Adlai_Stevenson_II

A US politician that I remember from my young days. A memorable name and person.

Gadget

[Erato]

"A memorable name and person."

I was one of I think four children who voted for him in our school election in 1956.  It was a staunchly Republican town in those days.

[Viktoria]

But there is a d at the end of the name so perhaps an mis spelling?
Viktoria..

[Uhnnohn]

But there is a d at the end of the name so perhaps an mis spelling?
Viktoria..

It was written with what looks like a marker on the back, so probably by someone a generation or more down the line who heard the name said but perhaps never saw the proper way to spell it.
(a very wild guess)

[joger]

Adelaide ( as written at the back of the painting) is a portuguese name given to boys .
Adlai is a rare name given mostly to boys, mostly in the US.

About the sadness of the children : it seems to me that the children and the father have the same "sad" eyes . A family trait , or the loss of the mother?
Another strange thing : the bare feet of the children.
Creepy picture , that's what I feel.

[Uhnnohn]

Adelaide ( as written at the back of the painting) is a portuguese name given to boys .
Adlai is a rare name given mostly to boys, mostly in the US.

About the sadness of the children : it seems to me that the children and the father have the same "sad" eyes . A family trait , or the loss of the mother?
Another strange thing : the bare feet of the children.
Creepy picture , that's what I feel.

It is a bit creepy. That's what interests me.
If the names provide by @mckha489 are correct, then that would explain why the mother is not in the picture. She died the same year Adlaie was born at the age of 23.

The bare feet are unusual.
Others that I have from that period with a white bow tie on the man are wedding pictures.

[dobfarm]

It not unusual for boys to have a girls name, about 40 years ago in the UK on Saturday afternoon TV we had wrestling - One big wrestler with arms like tree trunks with a  ring name called Big Daddy - his real name was Shirley Crabtree  (With a name like that I suppose he had to be tough at school  )

He could be named after the city of Adelaide in Australia because of some family connection to the city.

Looking at the funny G in Grandpa and comparing the A in aunt could the a in Adelaide be something else like Cl Ci