A chunk of the glass is missing, unfortunately.
A crown of thorns with a star in the center, superimposed over a cross, completes the picture. Above them is a dove in flight, looking down. At the bottom are what appear to be a field of daffodils or lilies.
The stained glass window inside the Thompson mausoleum is unlike any I have seen before. The stained glass in the Thompson mausoleum features a dove in flight below a crown of thorns.