We have no meanings for "only brother" in our records yet.
1 Shot right through the heart at Chancellorsville, and he the only brother .
2 His only brother had disappeared without a trace on the Burmese front.
3 Your father's only brother died in California more than a year ago.
4 Harry is my only brother , and he has been my hero always.
5 Hubert Gray, Winifred's only brother , had also been at church that morning.
6 Yes, my dear; the only brother I have in the world.
7 She is his only sister; he her only brother ; and they are orphans.
8 Her only brother was Dr Matthew Baillie, highly distinguished in the medical world.
9 His father and only brother are very wealthy, and living in Kansas City.
10 His only brother was for many years a Representative in Congress from Illinois.
11 Dáire was supported on the day by best man and only brother , Ronan.
12 She had an only brother who was the image of George.
13 You are his only brother , and he will feel it deeply.
14 Now shalt thou suffer due penance for murdering thy brave and only brother .
15 Her only brother , and her twin, had been killed fighting for the Confederacy.
16 My only brother surely might make a point of being at my wedding.
Other examples for "only brother"
Grammar, pronunciation and more
This collocation consists of: Only brother through the time
Only brother across language varieties