diff --git a/doc/author_carlin.txt b/doc/author_carlin.txt
new file mode 100644
index 000000000..c243b9089
--- /dev/null
+++ b/doc/author_carlin.txt
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+I place my contributions to p4est under the FreeBSD license. Louis Carlin (s33lcarl@uni-bonn.de)
diff --git a/doc/author_heister.txt b/doc/author_heister.txt
new file mode 100644
index 000000000..2d1e4f6b4
--- /dev/null
+++ b/doc/author_heister.txt
@@ -0,0 +1 @@
+I place my contributions to p4est under the FreeBSD license. Timo Heister (heister@clemson.edu)
diff --git a/doc/author_hirsch.txt b/doc/author_hirsch.txt
new file mode 100644
index 000000000..8aa6398f3
--- /dev/null
+++ b/doc/author_hirsch.txt
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+I place my contributions to p4est under the FreeBSD license - Michael Hirsch.