Hi I've just found your post. Beware of assuming that a person was buried at a church just because there is a burial entry for them in the church records. I tended to believe these too but I have found that a lot of my ancestors were actually buried at the Gravesend Cemetary, not at various churches although it would be that the funeral service was held at the church before hand.
I have found a James (Wickens ?) Barrett buried in the cemetary 9 Feb 1894, he was 9 years old at the time and he had lived in Bentley Street.
He was removed from Milton to the cemetary and was buried in a Common Grave 3209 in consecrated ground.
There is also a Lily May Bassett buried on 26 Nov the same year aged 21 months with an address of Augustine Rod, (the road where I lived and grew up btw. ).
She was also removed from Milton and was buried in consecrated ground in a Common Grave no. 3361.
Hope this is of use to you.
John