A Little Girl at the Graveside

Another of the finds in the albums just rediscovered. There is a certain poignancy in this photograph of a young girl at the graveside of - I presume - an elder brother? It is quite unusual to find such a personal photograph like this. The grave is of Frederick Charles Brown who died on August 31, 1919 aged 22 years. Would he have died as a result of the Influenza epidemic that took the lives of millions of people during 1918-1919, I wonder?