They were married on 27.4.1898 so this is probably May 1898. And Alfred Steven was born at Raamsdonk in 28.09.1899, with Johanna Cornelia following, born in Helmond, on 02.10.1901. So this shot is probably taken in Raamsdonk. It looks a very horticultural background. Perhaps they were keen gardeners. I know nothing about that.