Remove

1. commercial buildin …

What

1. commercial buil … (3)
2. Gustafson Comme … (1)
3. Kinter Commerci … (1)
4. Radiant Heat, I … (1)

Where

1. Easton, PA (1)
2. St. Mary's, PA (1)

Who

1. Hall, Raymond V … (3)
2. Gustafson, Elme … (1)
3. Kinter, F. Dwig … (1)
4. Radiant Heat, I … (1)

When

1. 1947 (1)
2. 1954 (1)
3. n.d. (1)