  Results from long-term multicolor optical photometric observations of the
pre-main sequence stars FHO 26, FHO 27, FHO 28, FHO 29 and V1929 Cyg collected
during the period from June 1997 to December 2014 are presented. The objects
are located in the dense molecular cloud L935, named "Gulf of Mexico", in the
field between the North America and Pelican nebulae. All stars from our study
exhibit strong photometric variability in all optical passbands. Using our BVRI
observations and data published by other authors, we tried to define the
reasons for the observed brightness variations. The presented paper is a part
of our long-term photometric study of the young stellar objects in the region
of "Gulf of Mexico".
