We know from Altgens 6 exactly where Lovelady is stood when the shooting starts and we know from his WC testimony he is still stood there when Calvary "came running up".
Mr. BALL - Did you stay on the steps
Mr. LOVELADY - Yes.
Mr. BALL - Were you there when the President's motorcade went by
Mr. LOVELADY - Right.
Mr. BALL - Did you hear anything?
Mr. LOVELADY - Yes, sir; sure did.
Mr. BALL - What did you hear?
Mr. LOVELADY - I thought it was firecrackers or somebody celebrating the arrival of the President. It didn't occur to me at first what had happened until this Gloria came running up to us and told us the President had been shot.
Mr. BALL - Who was this girl?
Mr. LOVELADY - Gloria Calvary.
Lovelady goes on to state that Bill Shelley is stood nearby and that Gloria was very close to the shooting when it happened. He also makes it clear that after hearing Calvary's account he and Shelley leave the steps:
Mr. BALL - Now, when Gloria came up you were standing near Mr. Shelley?
Mr. LOVELADY - Yeah.
Mr. BALL - When Gloria came up and said the President had been shot, Gloria Calvary, what did you do?
Mr. LOVELADY - Well, I asked who told her. She said he had been shot so we asked her was she for certain or just had she seen the shot hit him or--she said yes, she had been right close to it to see and she had saw the blood and knew he had been hit but didn't know how serious it was and so the crowd had started towards the railroad tracks back, you know, behind our building there and we run towards that little, old island and kind of down there in that little street. We went as far as the first tracks and everybody was hollering and crying and policemen started running out that way and we said we better get back into the building, so we went back into the west entrance on the back dock had that low ramp and went into the back dock back inside the building.
Mr. BALL - First of all, let's get you to tell us whom you left the steps with.
Mr. LOVELADY - Mr. Shelley.
In the Gif I posted Baker is running past Truly so we can time it approximately 20 to 30 seconds after the final shot. In it we see a white male with a receding hairline stood in exactly the spot Lovelady was photographed in Altgens 6, a photo taken seconds before the final shot. We know from the WC testimonies of both Lovelady and Shelley they didn't leave the steps until after Calvary had come running up to them. In the Gif the woman who appears to be talking to Lovelady is wearing a black headscarf, a black top and what appears to be a lighter coloured skirt. She is linking arms with a woman who is all in white - scarf, top and skirt. If this is Calvary telling Lovelady about the assassination then two things must be true:
1) She must have "been right close to it to see and she had saw the blood and knew he had been hit"
2) She was close enough to the TSBD so that she could run back and reach the steps before Baker got there
The Zapruder footage reveals that two women, dressed very similarly to those in the Gif are stood in a position that can be considered 'right close' to the assaination. Close enough to 'see the blood'.

Where they are stood is approximately 100-120 ft away from the TSBD steps, easily close enough to run back to the steps before Baker reaches them.
We know Loveladys' position on the steps when the shooting occurs
We know he doesn't leave that position until after Gloria Calvary comes running up
We know Gloria Calvary was very close to where the assassination occurred
We know she ran back to the TSBD
We know the two women in the Gif are dressed very similarly to two women in the Zfilm 'right close' to the assassination
We know Bill Shelley is stood nearby
And you don't find this even slightly compelling. Not even slightly.