[4] During his sabbatical at the Demography Department of Australian National University, in 1973, his understanding of the relationship between spatial patterns of residential segregation was transformed.

[5] During his next sabbatical at Yale University, in 1977, he disproved the 'triple melting pot theory' of American cultural assimilation which, based on data collection in New Haven, Connecticut, argued that while national ethnic identity in the United States would dissolve, it would do so within maintained religious boundaries of Catholic, Protestant and Jewish.

[4] In the 1990s and 2000s Peach continued his research on issues of segregation with particular focus on the dynamics relating to, and the arguments surrounding, Ghetto formation and White flight.

The Leverhulme survey photographed and collected data on religion, tradition, movements, vernacular language, date of foundation and other variables on nearly 1,000 buildings.

[4] a series of talks were given by former pupils and colleagues at the Oxford University Centre for the Environment on 22 September followed by a reception and speeches by professors Ron J. Johnston and Gary Bridge.

"[5]In 2008, the BBC reported that, along with Ludi Simpson and Danny Dorling, Peach was considered to be one of the top three British thinkers in the field of racial segregation.

Sir Matthew Pinsent (1989, Geography) remains a golden star – he never missed a tutorial, never failed to produce an essay, took a good degree and demonstrated that athletes at a high level are more conscious of time planning, and more efficient at meeting commitments, than many others with far less pressure on them.