1. Laura Loo
3. 30th March, 1953
This is a weak geng day master sitting on her indirect resource star.
What is her Useful god?
From the technical analysis, this weak geng day master needs the earth stars to strengthen it. Note that the 7K star, bing is countering the geng and bing is strongly rooted in si and strongly supported by the mao month. So, the earth resource stars are also needed to arbitrate the bing-geng clash.
From the classical analysis, this geng day master is too weak to be forged by the ding fire.
So, the earth stars should be her Useful god. I"m choosing the ji earth over the wu earth simply because ji being a yin stem is more usable.