Susanne's father Hans de oude and brother Hans de jonge were also known to associate with famous artists and to deal in art. The family and its connections in the art world are detailed in the 2002 book "Art at auction in 17th century Amsterdam" by John Michael Montias. The written van Soldt family history copies are kept at the Central Bureau voor Genealogie and at the Groen Hart Archives. The compilation consists of 27 folios bearing a late 16th-century Flemish watermark bound in a small volume measuring about 28.5 by 21 cm. Two hands can be distinguished, principally that of a Flemish or Dutch copyist, whilst some pieces, together with a table of notations and various fingering indications are in a later English hand, possibly that of Susanne's music teacher. Although it would appear that the manuscript was compiled for Susanne, the pieces it contains were current on the continent at a far earlier date, perhaps between 1570 and 1580. It has been conjectured therefore that the manuscript was written in Flanders or the Netherlands and brought over to London by Susanne's parents in the late 1570s, where Susanne's music-master later added pieces 30 to 33, the notation table on folio 2 and fingering indications in the first two bars of the first piece. When Hans van Soldt and his family left London, the manuscript presumably remained in England, although there is no trace of it until 1826 when it was sold among the effects of the music collector Thomas Jones of Nottingham Place, London, who had died the year previous. The British Library acquired the manuscript in 1873 where it is now catalogued under the reference Add MS 29485. While most of the pieces, including the psalm settings, are anonymous, many of the Franco-Flemish dance tunes can be found in other collections of the period, notably the Dublin Virginal Manuscript of circa 1570. With the exception of pieces 30, 31 and 33 (pieces written in a later English hand), there is no trace of influence from contemporary English music. The four-part psalms are the earliest known keyboard settings from the Dutch psalter and are of high quality.