When is Joshua supposed to give you the quests Retake the Bridge, Sanctity of the Dead, and Prisoners of War? I've just begun the part of the DLC where Graham is your companion, and I'm wondering if I can still finish these quests? Can I also finish the companion quests for Chalk and Cloud and still have them bare upon the ending slides?

When you Evacuate Zion (Taking Daniel Path) so I suspect you taken O Daughter of Babylon (Graham path) and so you dont get those quests (that are automatic given when going with the Evacuation).

And no, you cannot finish Chalk and Cloud quests at this point, do then BEFORE the last quest ... I know going with Daniel gives the "Warning" pop up screen but I am not sure if going with Graham also gives that screen pop up as I dont recall it coming up when I go down that path.

I apologize for my confusion. But are Graham's side quests mutually exclusive of Daniel's? When I first met Graham he was the one who gave me all the pacifist quests, and then (after he decided to go sleep at the Sorrow's camp) kind of sunk out of the story... I do have a save before I made my final decision, but I decided to meet with Daniel to make the decision, as the quest marker told me to do. Was their some way to follow the whole quest line for Graham? Is it still possible to do so if I load the save right before I begin the final confrontation?

Ah, perhaps I'm being too confusing. I just want to complete all of Graham's side quests, and it says that Sanctity of the Dead, Prisoners of War, and Retake the Bridge are all Graham's quests. But when was he supposed to give those to me?

I am also wondering this

Graham offers no quests beyond the "Deliverer of Sorrows" and so the "Gone Fishin","Tourist Trap" and "Roadside Attraction" quests and if you decide to take his side of the argument, "Crush the White Legs".

By taking Daniel side you start the "Flight from Zion" quest were "Retake the Bridge","Sanctity of the Dead" and "Prisoners of War" are automatically added, Joshua Graham does not offers them and he is your companion in both "Crush the White Legs" and "Flight from Zion".

To make this clear, you ONLY get "Retake the Bridge","Sanctity of the Dead" and "Prisoners of War" IF you start the "Flight from Zion" quest by agreeing with Daniel about evacuating Zion.