diff --git a/all-spark-notebook/README.md b/all-spark-notebook/README.md
index ff31f1a0..ffd356db 100644
--- a/all-spark-notebook/README.md
+++ b/all-spark-notebook/README.md
@@ -10,6 +10,7 @@
 * ggplot2, rcurl preinstalled for R
 * Spark 1.4.1 for use in local mode or to connect to a cluster of Spark workers
 * Mesos client 0.22 binary that can communicate with a Mesos master
+* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan` and `/opt/conda`
 * Options for HTTPS, password auth, and passwordless `sudo`
 
 ## Basic Use
diff --git a/datascience-notebook/README.md b/datascience-notebook/README.md
index 3a099bf1..5fcb108b 100644
--- a/datascience-notebook/README.md
+++ b/datascience-notebook/README.md
@@ -8,6 +8,7 @@
 * Conda R v3.2.x and channel
 * plyr, devtools, dplyr, ggplot2, tidyr, shiny, rmarkdown, forecast, stringr, rsqlite, reshape2, nycflights13, caret, rcurl, and randomforest pre-installed
 * Julia v0.3.x with Gadfly and RDatasets pre-installed
+* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan` and `/opt/conda`
 * Options for HTTPS, password auth, and passwordless `sudo`
 
 ## Basic Use
diff --git a/minimal-notebook/README.md b/minimal-notebook/README.md
index 4fb2cb37..bfba9b0b 100644
--- a/minimal-notebook/README.md
+++ b/minimal-notebook/README.md
@@ -5,6 +5,7 @@
 * Jupyter Notebook server (v4.0.x or v3.2.x, see tag)
 * Conda Python 3.4.x
 * No preinstalled scientific computing packages
+* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan` and `/opt/conda`
 * Options for HTTPS, password auth, and passwordless `sudo`
 
 ## Basic Use
diff --git a/pyspark-notebook/README.md b/pyspark-notebook/README.md
index 90298cff..8e886d47 100644
--- a/pyspark-notebook/README.md
+++ b/pyspark-notebook/README.md
@@ -7,6 +7,7 @@
 * pyspark, pandas, matplotlib, scipy, seaborn, scikit-learn pre-installed
 * Spark 1.4.1 for use in local mode or to connect to a cluster of Spark workers
 * Mesos client 0.22 binary that can communicate with a Mesos master
+* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan` and `/opt/conda`
 * Options for HTTPS, password auth, and passwordless `sudo`
 
 ## Basic Use
diff --git a/r-notebook/README.md b/r-notebook/README.md
index c7d1fbae..9d3fdbc4 100644
--- a/r-notebook/README.md
+++ b/r-notebook/README.md
@@ -5,6 +5,7 @@
 * Jupyter Notebook server (v4.0.x or v3.2.x, see tag)
 * Conda R v3.2.x and channel
 * plyr, devtools, dplyr, ggplot2, tidyr, shiny, rmarkdown, forecast, stringr, rsqlite, reshape2, nycflights13, caret, rcurl, and randomforest pre-installed
+* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan` and `/opt/conda`
 * Options for HTTPS, password auth, and passwordless `sudo`
 
 ## Basic Use
diff --git a/scipy-notebook/README.md b/scipy-notebook/README.md
index 128b747f..a7bf413c 100644
--- a/scipy-notebook/README.md
+++ b/scipy-notebook/README.md
@@ -5,6 +5,7 @@
 * Jupyter Notebook server (v4.0.x or v3.2.x, see tag)
 * Conda Python 3.4.x and Python 2.7.x environments
 * pandas, matplotlib, scipy, seaborn, scikit-learn, scikit-image, sympy, cython, patsy, statsmodel, cloudpickle, dill, numba, bokeh pre-installed
+* Unprivileged user `jovyan` (uid=1000, configurable, see options) in group `users` (gid=100) with ownership over `/home/jovyan` and `/opt/conda`
 * Options for HTTPS, password auth, and passwordless `sudo`
 
 ## Basic Use