Establishment and the early years From 1975 until 1901, Olssen was Principal Investigator of this project, with the Caversham Borough chosen as the study area because of the availability of electoral rolls and population data from the Census. A key purpose of the project was to measure the
social movement of different categories of people and the related
geographic mobility in the
borough. Olssen had studied similar topics while undertaking his PhD at Duke University.
Jock Phillips noted in
Te Ara: The Encyclopedia of New Zealand that Olssen's work in Caversham was significant during a time when historians were studying social history in the country. In 2002 an
exhibition resulting from a collaboration between the staff of the
Otago Settlers Museum and the Caversham Project Team, acknowledged the project.
Publications The Skilled Workers: Journeymen and Masters in Caversham, 1880–1914 (1988). Co-authored by Olssen, this was the first systematic study of mobility in the New Zealand Journal of History. This article informed the investigation of the role played by skilled workers in the process of class formation and how this shaped later political developments in New Zealand.
The Power of the Shop Culture: The Labour Process in the New Zealand Railway Workshops 1890–1930 (1992). Written by Olssen and
Jeremy Brecher, this article reflected their research into the building and engineering trades and challenged the idea that large-scale industry inevitably reduced skilled workers' agency, showing that those employed at
Hillside Engineering enjoyed and maintained almost complete control over the labour process, [and] "their skill...gave them a sense of identity and pride".
Building the New World: work, politics and society in Caversham, 1880s–1920s (1995). This publication was authored by Olssen following the project receiving considerable funding from the Foundation for Research, Science and Technology. One reviewer saw it as representing a change in focus for Olssen from unskilled to skilled workers at a local rather than a national level.
Raewyn Dalziel of
The University of Auckland held that Olssen's acquaintance with "feminist and post-modern theory" positioned him to analyse the role of women in "work, politics and society", acknowledging he used reliable sources that showed data for most women were excluded if they did not work for wages. Questions did remain for the writer about whether some of the strong statements made by Olssen about perceptions of women at the time added value to the study, with the suggestion that at the very least the evidence needed to be reconsidered to ascertain if exclusions could "point to inclusions and alternative meanings". Len Richardson, a labour and sports historian at the
University of Canterbury, suggested that Olssen's study was significant because it traced the process by which the women of the Caversham community were enabled to gain skilled training and more independence in their lives.
Sites of Gender: Women, Men & Modernity in Southern Dunedin, 1890–1939 (2003). Olssen assembling a larger multidisciplinary team in the late 1990s to analyse women's experience and the role of gender in structuring society, resulting in the publication of this book. Olssen took the position that the mobilisation of the workforce in the 1880s had many egalitarian aspects including the formation of some of the first women's unions, and women became increasingly confident and independent.
Patricia Grimshaw of the
University of Melbourne said the editors of the book had placed gender at the centre of an analysis of work in Caversham, and Olssen's contribution was a meta narrative that stressed the "change and continuities of gendering in work."
Class, Gender and the Vote (2005). This book was the result of a collaboration between some members of the team and a group of academics at the
University of Canterbury headed by Professor Miles Fairburn. Olssen co-edited the book and contributed the chapter ''Marriage Patterns in Dunedin's Southern Suburbs, 1881–1938'' which continued to explore the decisions young women made around work and marriage, which Olssen said, were influenced by higher levels of education and more awareness of debates and movements in the wider world related to women's rights.
Class and Occupation: The New Zealand Reality (2005). A reviewer said while the book was well-researched and very detailed, it was more likely to be of interest to specialists in the field of "demographics and census data...[than]...the general reader".
An Accidental Utopia? Social Mobility and the Foundations of an Egalitarian Society, 1880–1940 (2010). Olssen co-authored this as the fourth book published by the Caversham Project. Writing in the
Otago Daily Times Geoffrey Vine, a journalist and Presbyterian minister, noted Olssen's radicalism and "socialist aspirations" and suggested it remained open to debate whether or not the book answered the question in its title.
Movement and Persistence: A Case Study of Southern Dunedin in Global Context (2011). This was a paper submitted by Olssen to
Building Attachment in Families (2011), a funded project managed by the Centre for Research, Evaluation and Social Assessment (CRESA), with the goal of identifying how communities are built and sustained to create family wellbeing and manage problems of transience. Olssen used data confirming that within the suburb there were high levels of fluidity and social mixing of the population.
Working Lives c.1900 A Photographic Essay was launched in August 2014 by
Dave Cull a former mayor of Dunedin. One reviewer said that while Olssen invited the reader "to engage with both the richness and limitations of the photographers' gaze", a lack of images related to "household work or child-raising; work-place injuries and ill-health", portrayed a narrow definition of work. When interviewed about
Working Lives Olssen said that in the 1870s and 80s "the values and habits of life that evolved among the working men and women" in Dunedin were also reflected nationally. In
Landfall magazine freelance writer, reviewer, artist, and musician James Dignan agreed with this position. Revisiting the history of organized labour in Dunedin in the book, Olssen, suggested that the formation of the first women's union and the general acceptance by middle-class people for unions, resulted in workers actively supporting the development of an independent Labour Party. == Demographics ==