harg
Not very informative, but Lewis Cubitt was the architect of Kings Cross Station https://www.londonremembers.com/subjects/king-s-cross-station and https://www.kingscross.co.uk/lewis-cubitt-square is already mapped as https://www.openstreetmap.org/way/377974551. I'm leaving this unresolved for the moment so that an editor can check if there might be a plaque or statue in that location.