Bill and Inger are absolutely right. I have never seen any reliable accounts placing Chief Officer Wilde at either Collapsibles A or B during the attempt to free them, but would be most interested if anyone has found any from reliable witnesses that place him there.
As already mentioned, the last confirmed sighting of Wilde seems to have been at
Collapsible D by Second Officer Lightoller, when he refused the Chief's orders to leave in
Collapsible D. It would certainly be reasonable to believe that Wilde remained in the forward area, assisting with the remaining two collapsible boats as much as possible, but there is no way to be certain. He could have run off to attend to something else entirely that we don't know about. So many of the people who were in that area of the ship did not survive, and most of those who did were not familiar enough with the officers to know who they were seeing.
I have seen but one reference (with a name of a witness still on the ship at the time attached to it) to Wilde having been washed overboard, but closer examination reveals it is not an actual account, but rather conjecture.
Colonel Archibald Gracie makes a reference to Chief Officer Murdoch and Wilde having been washed overboard in his book:
"Clinch Smith and I got away from this point just before the water reached it and drowned Chief Officer Wilde and First Officer Murdoch, and others who were not successful in effecting a lodgment on the boat as it was swept off the deck."
At first glance, it may appear as if
Colonel Gracie is saying that he saw this himself, but later on when addressing whether or not First Officer Murdoch committed suicide, he makes it plain that he did not actually see them washed overboard.
In a few other places in the book he mentions that he did not know the identity of the officers who were working nearby him, but learned of their identities afterwards from someone else. He does the same in his Senate testimony, as far as it relates to First Officer Murdoch. Perhaps his source was Second Officer Lightoller, who the Colonel says told him that he saw Murdoch at the falls right before the Boat Deck plunged under. However, Lightoller himself testified that the last time that he saw Chief Officer Wilde was some time before the sinking.
Here is one of the references that show Gracie did not know who was near
Collapsible A until he was told about it afterwards:
"we crossed over to the starboard quarter of the ship, forward on the same Boat Deck where, as afterwards learned, the officer in command was First Officer Murdoch, who had also done noble work, and was soon thereafter to lose his life."
In the Senate Inquiry,
Colonel Gracie again indicates that he did not see Murdoch for himself, and I do not recall him mentioning Chief Officer Wilde at all in his testimony:
"Officer Lightoller tells me that at the same time he was on the bridge deck, where I have marked it "L", and that the first officer, Murdoch, was about 15 feet away, where you see that boat near the davits there."
In addition to conjecture that he was washed overboard, Wilde has been mentioned as a possible "suspect" as the officer who may have shot himself, if anyone did, but there is no real evidence that makes him any more likely a candidate than the other officers who we know were on the scene. Jack Thayer heard crewmembers on
Collapsible B asking "is the Chief aboard?", but he did not know whether they meant Wilde, Chief Engineer Bell, or
Captain Smith.
Unfortunately, without new information being uncovered, we are unlikely to know for certain what happened to Chief Officer Wilde.