Given the below context:  Although Watts's plans for the memorial had envisaged names inscribed on the wall, in the event the memorial was designed to hold panels of hand-painted and glazed ceramic tiles. Watts was an acquaintance of William De Morgan, at that time one of the world's leading tile designers, and consequently found them easier and cheaper to obtain than engraved stone. The four initial memorial tablets, installed for the unveiling, each consisted of two large custom-made tiles, with each tablet costing £3 5s (about £360 as of 2019) to produce. Only four tablets were installed by the time of the unveiling ceremony, and Watts already had concerns about the potential costs of installing the 120 tablets envisaged in the memorial's design.Costs were allayed by using standard 6-inch (15 cm) tiles for the next set of tablets, reducing the costs to a more manageable £2 per tablet. In 1902, nine further tablets were installed, intermittently spaced along the central of the five rows, including the memorial to Alice Ayres for which Watts had lobbied. The subjects of the 13 initial tiles had been personally selected by Watts, who had for many years maintained a list of newspaper reports of heroic actions potentially worthy of recognition. However, by this time he was in his eighties and in increasingly poor health, and in January 1904 the vicar and churchwardens of St Botolph's Aldersgate formed the Humble Heroes Memorial Committee to oversee the completion of the project, agreeing to defer to Watts regarding additions to the memorial. Watts strenuously objected to the name, as "not being applicable to anything as splendid as heroic self-sacrifice", and the committee was renamed the "Heroic Self Sacrifice Memorial Committee".On 1 July 1904 George Frederic Watts died at New Little Holland House, aged 87. He was hailed "The last great Victorian", and a memorial service was held in St Paul's Cathedral, 300 yards (270 m) south of Postman's Park, on 7 July 1904.On 11 July 1904 Mary Watts wrote to the Heroic Self Sacrifice Memorial...  Guess a valid title for it!
A:
Postman's Park