You probably have already found Henry, Clara, Ned and Frederick. Look for a T on the Map to find Robert Topping. You have to complete two Activity for him (Races and Fights), they will become available soon as you talk to him on his Establishment.
- Gang Strongholds: Henry Green
- Bounty Hunts: Frederick Abberline
- Child Liberations: Clara O'Dea
- Templar Hunts: Henry Green
- Gang War: Henry Green
- Spy Hunts: Winston Churchill
- Spy Hideouts: Winston Churchill
- Master Spy Hunt: Winston Churchill
- Horse Races and Fight Club: Robert ToppingWinston Churchill
is the last Associates, complete five Mission in the World War I simulation
for him to get the A Broad Base
and Bedfellows, Strange or Otherwise Achievement.