Police are carrying out searches in the Halstead area in their efforts to find an 82-year-old man who has been missing for more than a week.
Gordon Wilson, who has vascular dementia, was last seen by neighbours near his home in Leaden Roding at about 11am on Sunday, October 25.
Police now believe he took the number 59 bus from Leadon Roding to Chelmsford Bus Station that day.
From here his bus pass is then confirmed as being used to board the number 352 First Bus service at 12.30pm.
The bus finished its route in Halstead and the driver believes a man fitting Mr Wilson’s description got off at the final stop at 1.30pm and walked in the direction of Butler Road.
Braintree district commander Chief Insp Richard Melton said: “We are now focusing our efforts on the last confirmed sighting of Mr Wilson being in Halstead.
“I am appealing for members of the public to be vigilant and to contact us immediately if they see him.
“I would also like to thank people for their response following our previous appeals and for sharing and re-tweeting them.”
Mr Wilson’s daughters Lesley Rankin and Gillian Wilson said: “Our dad is very loved, not just by us but also by his three devoted grandchildren.
“We just want him back as soon as possible. We ask everyone to please keep looking out for him.
“Our dad visited Halstead with our mum many years ago and it’s possible he’s come back here to re-live happier times.
“He may have gone strolling in the lovely countryside because it reminds him of his late wife.”
Specialist search teams checked the countryside along the bus route on Sunday, October 31, and officers spoke to passengers on the 352 service and at Chelmsford Bus Station yesterday to see if anyone remembered seeing Mr Wilson.
Essex County Fire and Rescue Service search teams and specialist Essex Lowland Search and Rescue volunteers are assisting Essex Police.
Mr Wilson is believed to have left home with a small amount of cash and some of his medication.
He is known to enjoy long walks and had his bus pass with him. His ill health means he can become confused and have difficulty speaking.
Officers are also still looking at the possibility that he may be trying to reach Glasgow where he lived for more than 70 years and served as the headmaster at Shawlands Academy.
Mr Wilson is described as 5ft 11” tall and of medium build with grey thinning hair. He wears glasses and was last seen wearing a sports jacket which is either checked or navy. He usually wears a short, tie and jumper.
Anyone who sees him is asked to call 101 urgently.