Ms Duncan-Glancy posted a picture of her “new office” on Twitter as she arrived for the first time as an MSP, saying “here goes guys”.
As well as Ms Duncan-Glancy, arrivals from Labour include former MP Paul Sweeney and Michael Mara, brother of former North East MSP Jenny Mara.
Those from the SNP include Emma Roddick, Elena Whitham and Jenni Minto, who won Argyll and Bute for the party as incumbent Mike Russell stepped down from Holyrood.
For the Conservatives, GP Dr Sandesh Gulhane will head to Holyrood after winning a seat on the Glasgow regional list, as will Craig Hoy and Tess White.
More new MSPs arriving at Scottish Parliament
New MSPs are being inducted into the Scottish Parliament (Jane Barlow/PA)
More newly-elected MSPs are due to arrive at the Scottish Parliament on Tuesday, ahead of the official swearing-in ceremony on Thursday.
Those due to arrive on Tuesday for their induction session at Holyrood include Pam Duncan-Glancy, the first permanent wheelchair user to be elected as an MSP.
Once the new MSPs have been inducted, they will need to take the oath or make a solemn affirmation, pledging allegiance to the Queen.
Nicola Sturgeon will be the first to do so at 9am on Thursday.
Scottish election 2021: What is in Nicola Sturgeon s in-tray?
By Douglas Fraser
Published
image copyrightPA Media
A reshuffle and the Covid crisis, followed by an referendum, are top of the first minister s to do list, but there will also have to be work done on the independence proposition.
There s a daunting list, also, of public service reforms, economic priorities led by shifting energy markets, and the setting up of a national care service.
The first minister s in-tray has to be a robust structure at the best of times. Coming out of an election, with a pandemic and an independence referendum in sight, it is unusually daunting.
BBC News
By Glenn Campbell
image copyrightGetty Images
The only way for there to be a successful referendum on Scottish independence is if both sides agree.
That s how they did it in 2014 with the Edinburgh agreement and the alternatives are messy and risky for both sides.
If the current stand-off between Nicola Sturgeon and Boris Johnson cannot be resolved, the first minister intends - at some point - to pass a referendum bill at Holyrood.
She dares the UK government to challenge the legislation in court which it may feel obliged to do because it considers such a vote to be beyond devolved powers.
BBC News
By Glenn Campbell
image copyrightGetty Images
The only way for there to be a successful referendum on Scottish independence is if both sides agree.
That s how they did it in 2014 with the Edinburgh agreement and the alternatives are messy and risky for both sides.
If the current stand-off between Nicola Sturgeon and Boris Johnson cannot be resolved, the first minister intends - at some point - to pass a referendum bill at Holyrood.
She dares the UK government to challenge the legislation in court which it may feel obliged to do because it considers such a vote to be beyond devolved powers.