This final image finally has some staff(?) in view, that is the assumption; with a person behind the cafe counter. Although the two ladies in the door way can also be seen in the first interior view; standing in the double doors looking out over the front steps from the corner of Spa Bank and the lower promenade. Do you know whom they are?
Image and information courtesy of Reg Wilson, additional information courtesy of Ancestry, Find My Past and Callum Brown.
There is Frith postcard 1955 of the cafe and a M&L National Series postcard that can be no later than 1941. The Little Theatre poster may not refer to Middlesbrough Theatre which opened 1974 but probably refers to a “ borrowed “ venue ?