Turned out I have 3 observation logs on NGC 1491 even though I don't recognize the object in my memory.

Observation 1: With John Tatarchuk's 25" telescope on Nov 27, 2011 presumably from near Pontotoc, TX. You can tell logging or sketching was not something I practiced:
NGC1491_2011.jpg

Observation 2: With my 18" on Nov 28, 2013 while battling frost in Atoka, OK (Texas Astronomical Society's observing site):
NGC1491_2013.jpg

Observation 3: With my 18" on Dec 11, 2015 from Ft. Griffin State Historic Site west of Fort Worth, TX [this site was not very dark and one could see a huge light-dome from the DFW metroplex]:
NGC1491_2015.jpg