Caroline Heininger was last seen and pictured by CCTV on the A40 opposite Burford Lodge at around 5.27am on Wednesday, August 5. Missing woman (Image: Thames Valley Police)"We would like to express their deepest gratitude to everyone who has contributed to the search efforts so far and would encourage anyone who has information to come forward." "If you have any information that may help us find Caroline, please contact Thames Valley Police, quoting reference 43260403808." Lowlands search and rescue and the National Police Air Service have joined boots on the ground to find missing Ms Heininger. In addition, a 'Help find Caroline' Facebook group has been set up to support the search.