This today, friends, from Mr Pat Speer-----------a researcher whose work I esteem very much!-------------over on the Education Forum:
I was in Dallas on the weekend of the anniversary, and found myself standing in front of the TSBD at 12:30. And I looked at the steps from the angle of Altgens. Well, it hit me then that the Lovelady figure in Altgens was standing in the middle of the steps, and not on the far west of the steps, as seems apparent from the photo.Mr Speer took this photograph at 12:30pm on 11/22/19:

There is simply no physical way that this shadowline can be reconciled with the 'shadow' down Mr Lovelady in the Wiegman film:

Like I've been telling you people,
ain't no shadow on Lovelady! 