Allow me to offer my deepest condolences. These are words that one may not find comforting, but, no matter how many siblings one has they will be forever missed. My Dad had (11) children, and his wife past away, he married my Mother, she had (2) two boys, and they had (4) four children. All of my siblings are gone with the exception of an older half-brother, another half brother that I have not been able to locate, and (2) two full blooded sisters. Looking back, I miss all of them. My younger brother, a full blooded brother, perhaps, is the one I think of often. It is probably not measurable, but I believe in all honesty, there might be a difference.
WWII Vets. My oldest brother was a WWII Vet. Ronstar thanks for posting! Everyone who reads this is like having an opportunity to recall memories of their own! That alone assists in the healing process.
Leatherneck,
Semper fidelis