Draft manuscript. n.d.

Manuscript and "Our Environment." n.d.

"The Upland Pasture." n.d.

Manuscript concerning Conservation. n.d.

Statement about London. 1970.

Draft Introduction to New Mexico Portfolio. n.d.

Draft of "Man Versus Nature." n.d.

"El Penitente" by Nell Dorr. n.d.

"Touch me!" by Nell Dorr. n.d.

"Places and Faces" by Nell Dorr. n.d.

"On figures" by Nell Dorr. n.d.

List of enclosures with a letter. n.d.

Parque Nacional Volcan Poas. n.d.

"Spleth Pheromones" in Philnews. n.d.

The Baja Explorador Pamphlet. n.d.

Business card of "C. Russell MacGregor." n.d.

Manuscript. n.d.

Draft manuscript. n.d.

"The Upland Pasture." n.d.

Draft Manuscript 2. n.d.